Goodreads helps you keep track of books you want to read.
Start by marking “Penumbra (Spook Squad, #3)” as Want to Read:
Penumbra (Spook Squad, #3)
Enlarge cover
Rate this book
Clear rating

Penumbra (Spook Squad #3)

3.91 of 5 stars 3.91  ·  rating details  ·  662 ratings  ·  99 reviews
Agent Sam Ryan is sick of feeling lonely. It's time to take control and get a life outside of work. But Stephan, her boss, won't let her go easily. Offered the choice between guarding a clone, or remaining stuck in her office, Sam accepts the former, even though she suspects Stephan is using her as bait to draw out the dangerous Sethanon.
Paperback, 279 pages
Published June 1st 2009 (first published November 16th 2005)
more details... edit details

Friend Reviews

To see what your friends thought of this book, please sign up.

Reader Q&A

To ask other readers questions about Penumbra, please sign up.

Be the first to ask a question about Penumbra

This book is not yet featured on Listopia. Add this book to your favorite list »

Community Reviews

(showing 1-30 of 1,428)
filter  |  sort: default (?)  |  rating details
Let me get out the positive out there: first of all, this series is action packed, there is never a dull moment and lots of authors need to take notes on how to set up a storyline and how to write clues and reveals.
Secondly, there is no unnnecessary whining, pining, being stupid (well... Gabriel can be dense at times) but really, there is not a lot of eye rolling at the characters' actions.
Thidly, there is romance, just how I like it. It's there, it's not rushed and it's not overpowering the s
Jen (Red Hot Books)
Why in the name of all that is holy would a publisher re-release a book series that has no ending? It wasn't until after I read Memory Zero that I realized these books had been previously published. That wasn't a problem for me, but when I started reading other reviews, I found out that Keri Arthur had abandoned the series after book 3. Surely, it wouldn't be left unresolved... would it? Yes. It would. I reached out to the author on Twitter and asked if what I heard was true. She told me she wro ...more
Mon avis en Français

My English review

I was very eager to get into this third novel after finishing the second. I must say that this is the last volume the author wrote for the series and I was very curious to know the answers to my questions, including about the Sam’s past.

After the latest events and realizing that she is not happy and even more alone than ever, Sam decides to apply for a transfer. Yet it seems that Stephan does not agree with her, and offers her one last mission instead, solo,
So, I Read This Book Today
Great series ended too soon by publisher I spent my birthday with a new series (for me) that I was really enjoying. The Spook Squad by Keri Arthur. The premise and story are fascinating, involving a close-to-us parallel world where nonhumans live alongside normal in an uneasy balance. They are policed by the SIU, a shadowy group set up to police nonhumans.The main character in the book is Sam Ryan, a State Police Officer. As far as Sam is concerned, she is fully human - but is she truly? With no ...more
This review has been hidden because it contains spoilers. To view it, click here.
All Things Urban Fantasy
Review courtesy of All Things Urban Fantasy

PENUMBRA continues the quick pacing and action of the previous two books in this series. I liked figuring out just exactly what Sam is and how she fits into the vast network of government clones running amok around the world. I loved discovering Sam's powers along with her and how she learns about them was fascinating. This series storyline with an almost never ending rabbit hole of discoveries about just what the government has been doing in regards to
Sam has had enough of Gabriel pushing her away and not letting her get involved in any of their cases - she is sick of being stuck in her tiny office doing paperwork so demands a transfer from her boss Stephan. Stephan doesn't want her to leave so he offers to let her guard Wetherton, a politician who they know was replaced by a clone.

Gabriel is relieved when he realises that Sam is no longer his partner - until he finds out her new assignment. He believes that she will be in danger and is dete
This review has been hidden because it contains spoilers. To view it, click here.
I am really torn in trying to rate this book. I enjoyed it - a lot. Enough that I'd like to go back and read the first books in the series, except for the fact that the ending SUCKS. I have one criteria for anything I read: the book must have a good ending. This doesn't.

As for what hooked me on the book, Keri Arthur wrote an action-filled, fun book to read. The characters seem real and the reader will like them. Really - it's the ending that kills this book.

So how do I rate this? ARGH. I give
I am sad too see this series end. especially seeing as it ended on such a cliffhanger and on the whole I am not happy with how the series was finished. The whole point of the books was to find out the truth about Sam, this is achieved, right at the end of the book. However, it is not resolved, there is no real sense of closure. The way this book ends, makes it feel like there will be another book in the series, when as far as I know, this is not the case.

The big relationship problems between Gab
Kristie Flynn
Really liked the series, just wish I had known the story wouldn't be fully concluded.
Alisha Tarran
Agent Sam Ryan wants out of the Special Investigations Unit. She’s sick of the attitude from her partner, Gabriel Stern. She’s sick of the paperwork. Most of all, she’s sick of feeling lonely. But her boss isn’t about to let her go that easily. He gives Sam a choice: either stay stuck in her office or guard a clone replacement of Dan Wetherton, a government minister. Sam reluctantly chooses the latter—even though she suspects she’s being used as bait to draw out the SIU’s elusive nemesis.

Book Reading Gals
Thoughts: The talent of Keri Arthur constantly amazes me, and the Spook Squad series proves to be no different. I have rated both prior books with an A (you can check out both of those reviews here: Memory Zero (Book #1) Review - Generation 18 (Book #2) Review -

Once again, we pick up on the adventures of Sam and Gabriel, this time with Gabriel actually getting his way - for Sam to request a transfer. But is that re
Jeannie Zelos
Penumbra, The Spook Squad 3, Keri Arthur
Review from jeannie zelos book reviews
I was lucky enough to get book two for review and loved it. I’m a great fan of Keri’s work anyway, and this world is such fun, though at times confusing....with the shape-changers, shape-shifters ( yes there’s a difference) and multi-shifters.Its bad enoughjust sorting them out, but now we’ve clones too it seems...and of course there’s Sam with her unknown background and abilities. Then there’s Joshua and Joe, who is J
Eva Millien
Sam is tired of Gabriel’s attitude and reluctantly chooses a guarding assignment and even though they are on separate cases they still cross paths at every turn and soon discover that the connection between them is far more powerful than any could have imagined in thrilling urban fantasy.

Thrilling suspense and action keeps readers on the edge of their seat in this fast paced and smooth flowing plot. Keri Arthur paints a vivid world with well written scenes and details that capture the imaginatio
Fangs for the Fantasy
Sam has finally snapped over working with Gabriel. His insistence of keeping her out of all police work is too much – she needs to work and be effective. She gets a transfer – to a new case as a bodyguard of a politician. A politician who is really a clone and probably working with either the suspicious military scientists at Hopeworth or the sinister secret organisation of Sethanon… or maybe both

Of course, both Hopeworth and Sethanon are extremely interested in Sam and her unique biology – and
Franny (The Reader's Edge)
Release Date: October 28, 2014
Publisher: Dell
Author’s Website:
My Source for This Book: Dell
Part of a Series: Yes, Book 3, The Spook Squad Series
Series Best Read In Order: Yes
Genre: Paranormal Romance

PENUMBRA is the third book in the Spook Squad series by Keri Arthur. I was given this book by the publisher in exchange for an honest review.

Samantha Ryan, Spook Squad Investigator, is reassigned to guard duty that just might lead to the final step to discovering her true o
Sam is on cusp of remembering her past. A past she wanted to erase. She is putting her life first and foremost; her first action is severing her partnership with Gabriel. Sam is tired of being cooped up in the closet like office, no more! Her new assignment is with the clone of the Wetherton, which may place her in more danger than she realizes. At this point Sam is far to determined to care…. She wants answers!
Watching Wetherton and trying to find out who is behind that list of clones, vampires
April Hollingworth
Review Courtesy of April Hollingworth

The anticipated final book in The Spook Squad Trilogy is brilliant, though I do have to admit that I am gutted that there won’t be any more in this series. The final book answers all questions and of both Sam’s past and future. A wonderful series and a fantastic end to it, I would recommend this series to anyone and everyone to be honest. I loved it.

The Review:

Agent Sam Ryan has had enough with her partner Gabriel Stern’s attitude and she wants out of the Spe
I love this series so much! Gabriel drove me crazy and Sam continued to be her determined independent self.

Sam and Gabriel were partners until Gabriel's machinations succeeded in making Sam quit. She took a job guarding the clone of Dan Wetherton and trying to find out what he is up to.

Gabriel may have gotten her to quit and that should have meant she would be safer, but then she goes and takes a job doing something even more dangerous. He wants to start a relationship with her now that she do
I've read an reviewed the other books in the series and find Penumbra the weakest of the lot. Turns out there was originally a fourth book planned but a publishing contract for another series got in the way.

To start off, I would not recommend this book to readers new to the series. It picks up right where the last one ended and doesn't give bits here and there to update new readers. This I really liked. I get tired of reading some series which are 10 or more books into it and the author feels co
April Symes
**I received this book from Netgalley for my honest review***

Book three picks up as Sam has gotten tired of Gabriel not letting her help on cases and is refusing to let her go with him on cases. Sam has had ENOUGH. Stephen gives her an ultimatum at work –to either work a bodyguard case or quit. Sam knows it is time to make a choice. Sam knows she needs to get out while she can. Gabe will go against SIU to keep her safe , even if it means losing all he knows himself. All the meanwhile, Sam’s gene
*~*Lauren from Saints & Sinners Books*~*
Sam’s had enough with Gabriel’s decisions to keep her behind a desk and not on in the field. She’s decided to press the issue or move on from the SIU. When Stephen gives her an ultimatum of work a particularly difficult bodyguard case or take a hike, she knows it’s a take it or leave it situation. Gabriel does not take the news lightly and will not let Sam walk away from him so easily. Gabriel will go against SIU protocol to keep her safe. When Sam’s genetics are further investigated, Sam and Ga ...more
first impression

Sooo good! I loved every page, every word of this ....

I really hope there will be another book in this series but altough there are still open questions was satisfying nevertheless

loved it

Penumbra was perfect. It is the perfect blend of UF and some SF elements

I loved every single word of it. I feared, loved and hurt with Gabriel and Sam. the action was perfectly done and the storylines hooking!
both characters are great and do what they think is best - not for them but for the
Joanne Wadsworth
Keri Arthur brings mystery and intrigue in this enthralling series.

Agent Sam Ryan is given the assignment to guard Wetherton, a government minister, and becomes the bait in the process to draw out the SIU’s greatest enemy as she does. Gabriel Stern is her ex partner, a man who is driven to protect Sam. He also forms an other-worldly connection with her, one the two of them discover is more powerful than either of them could have ever imagined.

The first two books in Keri Arthur’s Spook Squad seri
I received a free copy of this book from the publisher via Netgalley in exchange for an honest review.

The reason the end of the second book left me dying to read this book is because even after Sam vowed not to let Gabriel chase her away, Sam finally calls it quits. After her terrible treatment by Stephan (Gabriel's brother) at the end of the last book, on top of Gabriel's unfair treatment of her, Sam finally has enough and decides to start living a real life without depending on work or partner
Denise Van plew
I have read alot of her books-Riley Jenson was the first ones all of them enhaled. So when I came across this one it was intriguing because it looked different than most paranormal more of a fanatasy. As I began reading I immediately took a instance liking to Sam-she knew she was different but she also was not going to wade in despair because she wanted to take control after all it is her life. She is also realistic so when given the chance to go on a assignment even a sucky one she goes for it. ...more

This is the second series I've read by Keri Arthur. I've come to really enjoy her writing style and plan on reading more of her books. But anyway, this was a very good read. Unfortunately I didn't know that this series was unfinished until after I read the first book, so I was already invested and had to continue it. I'm glad I did. It was an action-filled, suspenseful series with just a hint of romance. The plot was interesting and kept me wanting to know more. Althou
Amy A
Originally posted at Vampire Book Club

Two weeks after defeating the person responsible for killing the rejects from the Hopeworth experiments, Sam is ready to be reassigned. Anywhere she can get away from Gabriel. Fortunately, while she can’t leave the SIU completely, the director has agreed to grant her request: Sam will now be on guard duty.

This is not your normal guard duty, however. She will be “guarding”the clone of a senator that SIU believes has links to Sethanon. Little does Sam know tha
I liked it, but the ending was really annoying. One ought to be able to expect more closure from the third book in a trilogy. I assume that further books will follow, which I shall likely read if they are as good as this, but I hope not to be teased by false endings any more.
« previous 1 3 4 5 6 7 8 9 47 48 next »
topics  posts  views  last activity   
Connie Suttle's Blood Destiny series 1 3 Jan 27, 2015 09:13PM  
Where is the conclusion? 1 7 Sep 07, 2011 04:57PM  
  • Silver Skin (Cold Iron, #2)
  • Vampires Never Cry Wolf (Dead in the City, #3)
  • Cursed by Fire (Blood & Magic, #1)
  • Braving Fate (The Mythean Arcana, #1)
  • A Flash of Hex (OSI, #2)
  • Black Widow (Elemental Assassin, #12)
  • Bittersweet Magic (The Order, #2)
  • Night Sky
  • Marked by the Vampire (Purgatory, #2)
  • Death's Sweet Embrace (Dark Brethren #2)
  • The Devil You Know (Demon Legacy #1)
  • Broken Blade (Colbana Files #3)
  • Moonbeam (The Moon Trilogy #2)
  • Blade to the Keep (Goddess With A Blade, #2)
  • Call Of The Dragon (Return to Avalore, #1)
  • A Cold Day in Hell (Hellcat, #3)
  • Wounded (Rylee Adamson, #8)
  • Witches Be Burned (Magic & Mayhem, #2)
Keri Arthur, author of the New York Times bestselling Riley Jenson, Guardian series, has now written more than 25 books. She's received several nominations in the Best Contemporary Paranormal category of the Romantic Times Reviewer's Choice Awards, and recently won RT's Career Achievement Award for urban fantasy. She lives in Melbourne with her daughter and two crazy dogs
More about Keri Arthur...

Other Books in the Series

Spook Squad (3 books)
  • Memory Zero (Spook Squad, #1)
  • Generation 18 (Spook Squad, #2)
Full Moon Rising (Riley Jenson Guardian #1) Dangerous Games (Riley Jenson Guardian #4) Tempting Evil (Riley Jenson Guardian #3) Kissing Sin (Riley Jenson Guardian #2) The Darkest Kiss (Riley Jenson Guardian #6)

Share This Book