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Keys to the Demon Prison

(Fablehaven #5)

Brandon Mull (Goodreads Author)

4.44 · Rating details · 71,751 ratings · 3,465 reviews

After centuries of plotting, the Sphinx—leader of the Society of the Evening Star—is after the final artifacts needed to open the great demon prison, Zzyxx. If the legendary prison is opened, a tide of evil is certain to usurp control of the world.

In an effort to intercept the final artifacts, Kendra, Seth and the Knights of the Dawn race to strange and exotic preserves ac ...more

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Hardcover, 593 pages

Published March 23rd 2010 by Shadow Mountain (first published January 1st 2010)

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Dec 03, 2009 Chris rated it it was amazing

For the record, I'm the publisher. Yes, I've read it. Sorry, I won't be giving anything away. Well, maybe a little something. Chapter 5 in book 5 is the most intense, the most gripping chapter of all the Fablehaven books. Jaw-dropping. I was not prepared for what Brandon Mull pulled out of his sleeve. I doubt anyone will see this coming.

Brandon takes us all over the world, several continents. It's a breathless race to find the remaining artifacts. The artifact vault in Austrailia is a wicked ri ...more

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Oct 30, 2015 Lindsey Rey rated it really liked it

Shelves: middle-grade, fantasy, 2015

[4.5 Stars]

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Mar 27, 2010 Hollie Robb rated it it was amazing

Shelves: fantasy, young-adult, favorites

I had to stay up until 4 A.M. it was way too exciting to put it down. I even loved the end of the book, end of the series. I didn't think "thank heaven's it's over," like I have with others. Their was a lot of comic relief.

At the every end of the book, Brandon mentions that he might do more with the characters, but it will be with a complete different series. I would like to see that happen. The Characters are fun and very likable. It would be smart to start a completely different series if he ...more

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Sep 17, 2015 Kimberley doruyter rated it really liked it · review of another edition

i'm like no, oh my god, what the hell.
but boy was it a good ending. ...more

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Feb 17, 2014 Kimberley doruyter rated it really liked it

a little long but a good ending to a good series.
i will absolutly pick this series up to reread again sometime.

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May 03, 2017 Prabhjot Kaur rated it really liked it

Shelves: children, fantasy, middle-grade, contemporary, ya

I hate saying goodbye especially to the series that I have come to love so much. I can't get the world of Fablehaven out of my head and heart. I feel like life's not going to be the same without this series. Yep I'm being emotional but it's true.

Kendra and Seth Sorensen, brother and sister duo whom I didn't like at all in the first book have grown on me a lot especially Seth. Seth kept me completely hooked and entertained. We are introduced with Bracken in this book. Although he's great as he's ...more

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Jun 05, 2010 Angie rated it it was amazing

Recommends it for: Anyone

Shelves: thought-stimulators, fantasy, middle-grade

This review has been hidden because it contains spoilers. To view it, click here. I feel like the last few weeks of my life have been consumed by the Fablehaven series. I get home from work, play with my family, and then I finally get to dedicate a short amount of time to reading. One of the greatest things about summer is that you can read fun books that don't make you think, and Fablehaven gave me the diversion I needed. As I reached the last 20 or so pages of the series, I found myself reading slower, not wanting the ride to end. It was a good ride, but like all good thing I feel like the last few weeks of my life have been consumed by the Fablehaven series. I get home from work, play with my family, and then I finally get to dedicate a short amount of time to reading. One of the greatest things about summer is that you can read fun books that don't make you think, and Fablehaven gave me the diversion I needed. As I reached the last 20 or so pages of the series, I found myself reading slower, not wanting the ride to end. It was a good ride, but like all good things, the ride must end at some point. (However, there is no rule that says you can't go on the ride more than once.)

Usually, I get annoyed by happily-ever-after endings. My English major training has done that to me. The only exception I have been able to make is Harry Potter. The Harry Potter books are perfect in every way and the characters paid a steep price to get their happy ending. I didn't feel that the Fablehaven characters paid that steep of a price to get their happy ending; however, the ending didn't annoy me--it was actually quite satisfying. I find myself comparing the book to the battles that we all must face while here in mortality. The fight seems hopeless at times, but there is always a ray of hope that things will be better--eternally better. I think the most strong parallel of this is seen in the Fairy Queen giving up her realm for the good of all of mankind. That was the biggest sacrifice she could have made, and yet, she was rewarded a hundredfold in the end. She got to build up bigger and better kingdom, and this time she had her husband and her son by her side. I am a firm believer that if we are willing to sacrifice now, we will be rewarded an uncountable amount of time in the future. All we have to do is play our part, and we will experience eternal joy in the end.

I really enjoyed the role Doren and Newel played in these books. And Hugo. Hugo has become one of my most favorite characters. He is kind of synonomous with Hurley from Lost. Seth no longer drives me crazy--in fact, his sense of humor had me laughing out loud many times, something that usually only happens when I am reading Harry Potter. I am glad that Warren was able to play such a big part in the books. He is probably my most favorite character. However, I am still not a huge fan of Kendra. Despite the amazing things she has done, she still seems like a little girl to me, a little girl that is too afraid to jump off the high dive. That made the whole romance with Bracken even weirder. I must admit, I didn't see that coming. But alas, romance abounds everywhere. Bracken and Kendra's romance weirded me out less than the whole Warren and Vanessa thing. But maybe that is just because I wanted Warren to myself.

Now the books have come to an end, and it is time for me to start thinking about a new series to keep me occupied. However, whenever I think back on Doren and Newel's fondness for television, on Seth's and Warren's boyish fantasies, on the magical beauty of Fablehaven, I don't think I'll be able to stop the smile. Even in the world that I live in, Fablehaven can still work its magic. ...more

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Apr 08, 2009 Maryruth rated it it was amazing

Very exciting. I liked meeting new people and traveling to another preserve. The dragons were amazing. And whether or not it was intentional, Raxtus made me laugh. It's interesting to see Kendra's relationship with the Fairy Queen develop. I'm glad Seth's character is growing up; he's a lot like Warren now. Unfortunately, Warren has the worst luck of anyone. ...more

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Nov 17, 2011 Shannon rated it really liked it

Shelves: fantasy-scifi, action, owned, books-reviewed, young-adult-fiction

The conclusion to the five book series focusing on a brother and sister who discover a magical world run by their grandparents. I'm in the minority for loving it way more than Harry Schmotter, er, Potter. :)

Anyway, without giving spoilers there are a good number of twists and minor to moderate surprises. Mind you, that's for an adult reading the book. I suspect teen agers might be more amazed by things and such. Bracken was the most interesting secondary character and the verbal duels with the ...more

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Jun 10, 2012 Turtle rated it did not like it

Recommends it for: I would not recommend this book

Recommended to Turtle by: My Uncle

Shelves: wish-i-never-read, fantasy, children-s, apocalyptic

This review has been hidden because it contains spoilers. To view it, click here. Ugh. Where to start with this one?

It wasn't as hard to read as Breaking Dawn. But it wasn't easy. Most of the time I would be in the middle of reading the book... wishing I was doing something else. That's never a good sign by the way. You don't want your readers to be wishing they were not reading your story.

This book had a major strike against it. I just didn't give a crap anymore. All these bad things are happening to the characters, but I really couldn't care less.

Seth gets kidnapped... b ...more

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View all 22 comments

Emelie Andersson It reminds me of a Wuxia story I read once that was a parody of all the tropes in Chinese novels. The story was a about a guy who had a rival but seem ...more
Aug 23, 2020 02:35PM

Dagny Steed One thing. At the very end, Kendra’s parents were all over her because the thought that she was dead.
Jan 16, 2021 09:35AM

Feb 07, 2019 Laura rated it really liked it

Shelves: read-in-2019, you-re-never-too-old-for-these

A good ending for a lovely series!

And I'll be looking out for more Brandon Mull books. Because they are great!!! ...more

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Sep 08, 2014 Audrey rated it really liked it

Shelves: local-authors, fantasy, audiobooks, 2020-misc-books

This is a long book, and it’s jam-packed. It’s like four books in one. This is the thrilling conclusion to the Fablehaven series (at least until Dragonwatch). I had forgotten a lot of this book!

Seth and Kendra are on separate adventures for most of the book. There are new and old characters, some surprises, and a respectable body count. It’s all very exciting, and as always Mull’s imagination is enviable. Definitely read the previous books first.

I’m not crazy about the narrator. He sounds like h ...more

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Apr 08, 2010 Emily Michelle rated it it was amazing

I started this book a few evenings after it came out and told myself I would put it down and go to bed as soon as I reached a stopping point. I finished the book seven hours later, having read the entire thing straight through, because as it turned out, there are no stopping points. The book sucks you in from the first chapter and doesn't let you go until it's done.

The story follows Kendra, Seth and their friends all over the world, from the Middle East to the American deep south to Scotland to ...more

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Nov 07, 2015 Kells Next Read rated it it was amazing

Shelves: brandon-mull, children, dragons, fiction, ebook, favorite-authors, fairies, fantasy, favorites, mg

This last book in the Fablehaven series ~~was~~ Is Everything

I Laughed, Cried. Cheered and Fell in Love, whilst reading this Gem. I did not want this to end. I wanted more, so much more. The plot twist was believable and enjoyable, the characters ( new and old ) were Amazing and the action and suspense was most certainly, a Euphoric Experience.

I Love these Memorable Characters Immensely. Middle Grade book my Ass, this read is for any and all age groups.

10 ~ I'm sad that is over, but feel honored t ...more

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Aug 30, 2011 Samuel Loveland rated it it was amazing

There seems to be a generation of Harry Potter fans who are looking for the fun, adventure, and growth that we experienced in that series. When cop-outs like Percy Jackson came out, we snatched them up in order to quench our thirst for more. What we got from these wanna-be stories is a sense of fun and adventure, but a lack of something deeper.

Don’t get me wrong. I both read and enjoyed the Percy Jackson books. They were adventurous and a whole lot of fun. However, I think most people would agre There seems to be a generation of Harry Potter fans who are looking for the fun, adventure, and growth that we experienced in that series. When cop-outs like Percy Jackson came out, we snatched them up in order to quench our thirst for more. What we got from these wanna-be stories is a sense of fun and adventure, but a lack of something deeper.

Don’t get me wrong. I both read and enjoyed the Percy Jackson books. They were adventurous and a whole lot of fun. However, I think most people would agree with my assessment that held up to Harry Potter, it was missing something.

Fablehaven is no cop-out. It’s a fantastic story that bows to no cliche’s without stretching them. It is a story about kids thrown into a world of magic, kids that still have families. (I know right? For awhile there we began to think that kids HAD to be orphans in order to have adventures.) It has the fun. It has the family-friendly appropriateness for all ages. It has the depth of character and theme. One of the strongest themes of the series is in the different types of heroism displayed by the two main characters.

Kendra vs. Seth

Kendra appeals to the sense that purity wins. She has her stuff together, she thinks things through, and she follows the rules (unless it would be more prudent not to). Throughout the series, this attribute, combined with her pure intentions, have won the day several times over.

Seth, on the other hand, is headstrong, rambunctious, and a little bit of a troublemaker – a man after my heart. In another world, he might have been named Calvin. Seth is consistently breaking rules, with the best of intentions, and making a mess of things. His mistakes needlessly throw others into danger, and though Seth does care, he doesn’t ever seem to gain his sister’s cool head.

Both are heroes. We have the pure hero, and the one who screwed up and has to fix it. Thematically, we have two lessons; first, that it is better not to screw up in the first place and second, that if you’ve already screwed up, you can learn from this by doing what you can to make it better.

But theme isn’t the only thing the book has going for it. With a world full of fairies, demons, Eternals, powerful artifacts and satyrs who are addicted to TV and junk food… well, to quote a certain Star Trek character,

“You don’t have to take my word for it”

Go pick one up for yourself. Or better yet, for us students, borrow from a friend – this is a series worth discussing with buddies.
...more

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Feb 15, 2017 rachel ☾ rated it it was amazing

Shelves: 5-star, fantasy

God, this series is my everything.

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Jan 31, 2010 Tracy rated it it was amazing

Brandon Mull is simply a wonderful writer. If I had kids, I'd MAKE them read this series.

All the other rave reviews are right on, and written by more talented reviewers than myself. I will add two points. First, I really like how Mr Mull weaves in little "life lessons," quite directly but without being preachy.

And, Mr. Mull, if you really are contemplating writing more Fabelhaven-related books, I would love to see more of Doren and Newel! I haven't laughed out loud at dialogue in a book in a v ...more

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Dec 17, 2014 Mairéad (is roaming the Undying Lands) rated it really liked it

Shelves: childrens

{December 19th, 2014} MINI-REVIEW

4 to 4.5 stars, I want MOAR.

“Try as we might to postpone them, days of reckoning inevitably arrive.”

Well this was certainly quite the ride. Everything really managed to be covered in almost 600 pages and in a smooth way to almost. I'm surprised how much work went into this final book. After the last book, I was wondering how it would hold up. Thankfully I was surprised again, especially since I finished this within less a day. Pretty insane, huh?

Now what to s ...more

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Jan 17, 2012 Anna rated it it was amazing

This series was fantastic. I highly recommend it and the author!

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Jan 21, 2018 Kendall rated it really liked it

Shelves: different-genres-challenge

This is by far the best and most action-packed of the series!
Full RTC

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Mar 30, 2010 Fraffee rated it it was amazing

Recommends it for: Harry Potter Fans, Percy Jackson Fans, Lovers of fantasy and mythology, Kids at heart

Shelves: favorites

This review has been hidden because it contains spoilers. To view it, click here. WOAH.
Yup, my first attempt at writing an intellectual review begins with the word, WOAH.
I've been loyal to the Fablehaven series ever since I read the first book. I instantly fell in love with the ideas that were found in Brandon Mull's books. I've been waiting for a series like this, practically all my life - not kidding. Now that it is ending, I feel like I just passed through to a new stage of my childhood. That is why I feel so pressured in giving this final book the best review I could eve WOAH.
Yup, my first attempt at writing an intellectual review begins with the word, WOAH.
I've been loyal to the Fablehaven series ever since I read the first book. I instantly fell in love with the ideas that were found in Brandon Mull's books. I've been waiting for a series like this, practically all my life - not kidding. Now that it is ending, I feel like I just passed through to a new stage of my childhood. That is why I feel so pressured in giving this final book the best review I could ever 'try' to write.

My first thoughts were, again, WOAH. I was instantly hooked from the start of Chapter 1 to the end of Chapter 30. I nearly sobbed when I read Kendra's last words because it meant that the series was over. But really, the last book was the perfect icing on Bradon Mull's ever so complicated yet brilliantly baked fantasy cake.

I don't actually know where to begin. But I guess I should start praising the characters since they were the ones that kept the story going. I would like to hail Seth as one of my favorite characters in the series; but my liking for him grew in the last book. Yeah, he's messed up more than any other character in the books but what I love about Seth is his desire to make things right. I was rooting for him, cheering him on all the way. I find him very endearing and that's what makes me love him even more. Besides his courage and his desire for justice, I found him also to be very protective. He loves his family and will stop at nothing to save them - as seen in his quest for Vasilis. I would also like to note his compassion in helping Graulas. I knew the monster was no spongecake softy but I don't hate Seth for healing him. It just shows he's a good person, willing to help others even if it's beyond his abilities. He really matured over the last few books - but as seen by the television-generator bargains, Seth will always be Seth, and that's fine with me. Moving on, to other characters I liked - Kendra, Bracken, and Warren. Kendra, too good to be true obedient daughter or not, I love her anyways. She's just as endearing as her brother. Many may argue her to be boring and bland but I think she had a spunk to her in this book. I found her little fling with Bracken adorable. It really didn't feel weird to me because they'd be the perfect match - fairykind maiden and a unicorn fairy prince, best combination ever. By the way, I literally got chills when Bracken gave his speech before battle in Shoreless Isle. His bravery made me love him as well. Also, I'd have to commend Warren for his outstanding loyalty. He stuck with the Sorenson clan through thick and thin - mostly thick. He's the older version of Seth, I think that's why he grew on me. Now in the magical aspect, I would say that I loved Hugo the most. My heart ached when his ached - weird, but I felt him to be more human than some of the 'real' human characters in the book. His bond with Seth is too cute. Raxtus really blew me away in this book. He is literally the coolest dragon ever. And oh please don't get me started on Coulter. I'll just burst into tears again because I really was fond of him. His death really tugged at my heartstrings. He may seem like a hard egg but he has grown on me because I see him in a grandfatherly way.

Now, onto the plot - which was amazing, just so you know. It had all the things I was craving for. Crazy battle scenes, mythical creatures, a narrative filled with suspense, funny conversations, and more - much more. I can tell that Brandon Mull really gave his all when he wrote this because it was an explosion of WONDER - the preserve in Australia alone already got me dancing in my room. The book was pure epic magic. Each chapter was filled with so much that I was afraid I wasn't going to remember any of the details but then again, Mr. Mull has a way of keeping one up to speed on events. His writing was really easy and fluid. But there were times when I kinda felt weary from his overly detailed descriptions. Actually, I sometimes love the overly detailed stuff because I get to visualize them in my head. Even with this little 'thing', HIS WRITING IS STILL WICKED.I don't think I'll ever find another author who can cook something as insane as this series and write it in a way that would give it justice.

The ending was pretty perfect in my opinion. Was it predictable? At one point yes, and the rest, well I was completed taken aback by some of the events because I never expected them. Brandon Mull is so brilliant - his idea of using the Fairy Realm to serve as the new prison is genius. I found the fight scenes glorious and Lord of the Rings-esque but during the battle with the demon horde, I was kinda expecting more. But in the end, Mull made everything better with his clever dialogue and his magical way with words. As a 300/LOTR type of person, I was really satisfied by all the fighting scenes Mull presented. Some were somewhat literally unbelievable but I loved it anyway - cause, hey, it's a fantasy novel. One thing just bugged me - everything worked out so easily for Kendra and Seth. But I was truly still satisfied by the outcome of everything. I also have to consider the fact that Kendra and Seth are not ordinary kids. They both have an endearing spirit. That spirit - the desire to help their friends, the desire to free their families and the deep longing to save the world despite the chances of death being nearly a 100 percent - propelled them and enabled them to do the crazy things that they did. Seth killing Nagi Luna and Graulus was no small feet but in a way believable because his extreme love for everyone else made his victory possible. When Kendra defeated Gorgrog, I then thought that people would go through extra lengths to protect their loved ones. The forces of light also overpowered the darkness because of the extreme desire to restore what's right.

Besides bravery, loyalty, perseverance and hopefulness, the last concluding lesson I learned from this series is that ordinary people can do extraordinary things. Two simple kids who just wanted everything to be right - ended up restoring what is right and more. Brandon Mull is an inspiration, all writers should be more like him.

Getting teary eyed is unavoidable. I'm sad that this series is over but at least I'm at peace with what Brandon Mull has written. He tied everything together perfectly - just like a beautiful ribbon decoration on a present. And it got me thinking, this book is probably one of the greatest contributions to the Young Adult Fantasy genre - a true 'present' indeed. ...more

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Sep 04, 2018 Sam rated it it was amazing · review of another edition

Shelves: fantasy, series, middle-grade, 2018-reads

This review has been hidden because it contains spoilers. To view it, click here.

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Mar 15, 2018 Mercy rated it it was amazing · review of another edition

Shelves: 2018

Now I need to read every Brandon Mull's book 🙊 ...more

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Jun 15, 2020 itchy rated it it was amazing · review of another edition

Shelves: electronic

titular sentence:
p155: (view spoiler) the keys to the demon prison.

?
p80: The Chronometer will only transport mortals, and will only take you as far back as the day of your birth. To clarify, the device will transport any group of mortals as far back as the day the eldest member of the group was born.

The world-building and magic system are top-notch and way better than the competition. I wish I'll have tim ...more

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Oct 18, 2019 Jen (LOHF/Book Den) rated it it was amazing · review of another edition

Shelves: fantasy, middle-grade

I'm done! It was tough getting through 2,412 pages of a series in a short period of time, but the Fablehaven series was a really solid read. Keys to the Demon Prison is my son's favorite book of all time now. What a successful ending! Kendra and Seth are so grown up, and I may have gotten a little teary at their parents at the end of this one.

There is a sequel series (Dragonwatch). My son has already flown through the first two and is finishing up the third one that was just released this month. ...more

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Jan 12, 2011 Ithlilian rated it it was ok

Shelves: young-adult

Keys to the Demon Prison is full of action, but that is about all there is to it. The book picks up right in the midst of things and never lets up. I personally didn't enjoy it. There are about 20 tasks that need to be completed and the characters systematically go through them. Traveling to each event takes 20 or so pages, the actual event takes a page, and then it is on to the next thing. There is no flow here, and no elegance. I loved the whimsical nature of the first Fablehaven book. It's a Keys to the Demon Prison is full of action, but that is about all there is to it. The book picks up right in the midst of things and never lets up. I personally didn't enjoy it. There are about 20 tasks that need to be completed and the characters systematically go through them. Traveling to each event takes 20 or so pages, the actual event takes a page, and then it is on to the next thing. There is no flow here, and no elegance. I loved the whimsical nature of the first Fablehaven book. It's a book that really made me want to live the lives of the characters. What could be more fun and interesting than exploring a place full of mystical creatures and uncovering secrets? Now these books feel like chores, as if each character is presented with a list of things to do, and they go do them. It is just not enough. I really didn't care what person or place was coming up next. In fact, throughout this entire book all I wanted was for it to be over. I felt the same way about the last Percy Jackson book. Running around from place to place does not make an interesting novel. It's extremely repetitious and boring, no matter how much action you want to throw in there. The characters don't help the book much either. The book is so focused on events that the characters feel like bystanders. You could insert any character in the novel and they would do just fine. The personalities aren't really as present in this book as in others, and no one has matured or changed much from book one. Throwing in many additional characters in each book does not help improve the series, it just adds to the short choppy nature of each book. Each character gets a few sentences of explanation, then off they go to complete their tasks. The only interesting part of this book was the beginning. I did enjoy exploring the first dungeon, but once I realized that running through dangerous areas was all the book was about, my interest took a nose dive. Keys to the Demon Prison felt more like a video game than an exciting novel with specific tasks to complete, objects to retrieve and places to go. Fans of the series should read it for closure alone, but I was very disappointed and struggled to finish it. ...more

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Apr 01, 2010 Amanda rated it liked it

My issue with this book is the same issue I've had with all of Mull's other books. The execution of his ideas is just mediocre. From a technical/grammatical standpoint, it's written pretty poorly. He employs very little imagery, and sometimes sounds like he learned to write by reading too many fantasy novels. Most good writers will show me what is happening. Mull just tells me. Lengthy descriptions and big words don't necessarily make good writing.

He took a long time to get into the flow of thi ...more

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Jul 28, 2015 Lazybee rated it really liked it

Epic conclusion for an outstanding series. There isn't much to dislike in this book. I loved it. ...more

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Feb 07, 2017 Kimberley doruyter rated it really liked it · review of another edition

a little too long but a great finaly to a really great series.

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Feb 08, 2019 C.P. Cabaniss rated it really liked it

Shelves: fantasy, middle-grade

I've finally completed this series and I am so glad I finally read it! It took me a long time to continue after reading the first book, but I'm so glad I finally did.

I won't go into too many details, since this is the final book of a series, but it wrapped things up nicely and had a satisfying conclusion. Seth and Warren are still my two favorite characters, though there aren't many that I don't like.

This had a lot of great battle scenes and our characters faced great challenges. A lot happens ...more

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About Brandon Mull

Brandon Mull

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Brandon Mull resides in a happy little valley near the mouth of a canyon with his wife and three children. He spent two years living in the Atacama Desert of Northern Chile where he learned Spanish and juggling. He once won a pudding eating contest in the park behind his grandma’s house, earning a gold medal. Brandon is the author of the New York Times bestselling Fablehaven series and The Candy S ...more

Other books in the series

Fablehaven (5 books)

Books by Brandon Mull

Rise of the Evening Star (Fablehaven, #2)

Grip of the Shadow Plague (Fablehaven, #3)

Secrets of the Dragon Sanctuary (Fablehaven, #4)

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Quotes from Keys to the Demon...

“Luck has a way of evaporating when you lean on it.” — 195 likes

“Making mistakes is part of learning to choose well. No way around it. Choices are thrust upon us, and we don't always get things right. Even postponing or avoiding a decision can become a choice that carries heavy consequences. Mistakes can be painful-sometimes they cause irrevocable harm-but welcome to Earth. Poor choices are part of growing up, and part of life. You will make bad choices, and you will be affected by the poor choices of others. We must rise above such things.” — 143 likes

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