Goodreads helps you keep track of books you want to read.
Start by marking “The Threat (Animorphs, #21)” as Want to Read:
The Threat (Animorphs, #21)
Enlarge cover
Rate this book
Clear rating
Open Preview

The Threat (Animorphs #21)

3.82  ·  Rating Details ·  2,259 Ratings  ·  52 Reviews
"The Threat" is a new Animorph named David. At first he's a valuable warrior. But as crucial battle plans unfold, the Animorphs realize they've made a terrible mistake.
Paperback, An Apple Paperback, 158 pages
Published September 1998 by Scholastic Inc. (first published January 1st 1998)
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 The Threat, please sign up.

Be the first to ask a question about The Threat

Community Reviews

(showing 1-30 of 3,000)
filter  |  sort: default (?)  |  Rating Details
Ben Babcock
Nov 13, 2015 Ben Babcock rated it really liked it
What is this I can’t even.

#21: The Threat strips away any remaining pretensions that this is a “children’s” series. This is YA at its grittiest. Long before we had people volunteering themselves as tribute and running through mazes and choosing which Personality House they belong to, we had David the Traitor betraying the Animorphs because he is a terrible human being.

We’ve seen this theme before in the book. Applegate reminds us that humans have the capacity for great acts of courage (see: the
Apr 01, 2015 Julie rated it it was amazing
The structure and pacing of the David trilogy is so unbelievably good. I think this review will vaguely spoil the gist of this arc in general (but then again, so do the taglines on the covers, so...), but not in specific. Taking a moment to look at how KAA constructed this:

The Discovery: It's so fitting that this one is narrated by Marco, the guy who gets along least with David -- because it also makes sense, because Marco has an abrasive personality that is likely to rub many people the wrong w
May 02, 2015 Noella rated it really liked it
This review has been hidden because it contains spoilers. To view it, click here.
Jul 16, 2016 Nikki rated it it was amazing
This trilogy gives me goosebumps. SO INTENSE!
Janelle Dazzlepants
This review has been hidden because it contains spoilers. To view it, click here.
Aug 06, 2014 Swankivy rated it it was amazing
Second in the "David" trilogy. David proves to be one twisted little sicko. Even though the Animorphs are good guys, they may have to think like bad guys in order to stop David, because after all, they not only have themselves to think about; they are the only force stopping the Yeerks from taking over for good. They can't let this little snot wreck their group. But what can they do without becoming evil themselves?

Notable moments and inconsistencies:

It's a nice touch that people who got knocked
Nemo (Young Adult At Heart)
Brought to you by The Moonlight Library!

Things with the newest Animorph, David, aren’t going so well. He’s reckless, unmoral, and a coward. He’s also the biggest threat to the Animorphs since they started their war. He knows their secret, and he has their power…

I absolutely love the David trilogy. David is unlikeable from the first time we meet him in The Discovery. Even though this novel is short, his character growth is phenomenal. He grows from a little reckless, quite frightened by morphing,
Alan Gilfoy
Oct 10, 2014 Alan Gilfoy rated it it was amazing
Now David is saying and doing some really nasty things instead of just being obnoxious.

The mission *is* more important than Saddler. And I don't see what Jake could do for the boy, so any involvement by him would seem like an empty gesture anyway.

It's good to hear about Marco's dad dating again, though that fact crimps these particular plans.

Having trouble sneaking in within the two hour morph limit was nice as a different sort of close call. I was reminded of a moment earlier in the series wher
Julie Decker
Aug 06, 2014 Julie Decker rated it it was amazing
After a narrow escape from their investigative mission on the Yeerk Blade ship, the Animorphs hatch a plan to infiltrate and save the world leaders from being infested by Yeerks. They're also still getting used to their new member, David, and have some disturbing conversations and revelations about him. He seems insubordinate, confused, and possibly dangerous. When they sneak in to scope out the place where the world leaders' banquet is going to occur, they uncover some tricky Yeerk holograms an ...more
Sep 13, 2016 Sharon rated it really liked it
It's been kind of a dry spell for me so I was a little confused diving right in-- but man this book is pretty tense! It really kept me on the edge of my seat-- wondering how they were going to get out of the situation they were in. The last chapter or so was especially good when it came to drama and tension.

(view spoiler)
This review has been hidden because it contains spoilers. To view it, click here.
Tommy Grooms
Jun 21, 2016 Tommy Grooms rated it really liked it
Just as Marco was the perfect narrator for our introduction to David, it's appropriate that we see David's betrayal through the eyes of the Animorphs' leader. Jake struggles with the unknown factor that David introduces to the tight-knit group, and with David's abuses of the power to morph that the rest of the group has avoided implicitly (one effect David has is making you appreciate the original group and their dynamics even more). The series has dealt with some heavy subject matter already, b ...more
Sep 01, 2016 J.N. rated it really liked it


I liked that the plot was more serious than the last one but this one was definitely messy and I saw the betrayal coming a mile away. Still, it was fun to read and the last few chapters were especially exciting. (view spoiler) The sc
Jan 28, 2016 Stephanie rated it it was amazing
Book two of the ‘David trilogy’ in Animorphs, and things are getting heated. Not only are the Yeerks plotting a huge event to get to make Controllers of many heads of state, but there is also trouble with the shaken-up balance of the Animorphs with the addition of David to their numbers. David’s now been active in a couple missions, and Jake and the others are getting a better feel for David’s character and how he reacts to events. Some of David’s “jokes” and opinions seem to be cause for conc ...more
Oct 24, 2011 Parikhit rated it liked it
Shelves: science-fiction
The 21st book in the series by Applegate and the second science fiction book I picked up after an astounding experience with ‘The Threat’, second in the Animorphs series. Science fiction has dangerously crept into my interest. Morphing back into the teenager, I was hooked to ‘The Threat’ and couldn’t wait to lay my hands on this one and it would be an understatement if I were to mention I liked the book. Though I missed about 18 books in the series my hiatus was compensated by a brief introducti ...more
Chelsea Gouin
Mar 25, 2016 Chelsea Gouin rated it really liked it
Shelves: animorphs
The David Trilogy continues! As this is part 2, it starts right in the middle of the action that book 20 left off on...the Animorphs in cockroach morph falling from a plane. This adventure is told from Jake's perspective and I thoroughly enjoyed his insight. There's a lot he's got to think about; saving the UN from becoming evil alien Controllers and of course what to do with the newest member of the gang, David. And David isn't really fitting in. He's impulsive and as Rachel points out, a cowar ...more
Feb 01, 2011 Marchel rated it it was amazing  ·  review of another edition
The 21th story about Animorphs. Jake the Leader.

As teenager, Jake must face and handle a lot of trouble. Well, he's the leader of our small battle team names Animorphs. He must take a decision about dead or alive on long battle against Yeerk.

This time, he must deal with a huge mission and a new member of Animorphs, David. First David looks like a great addition to the team, he knows something that the others don't know, he battle well. But, David is an a**h*l3. He trying to betray the others, tr
Jan 24, 2015 Beth rated it it was amazing
Ok, I really hate this guy. There is obviously something a little more than broken in his head. It drives me nuts that Jake doesn't recognize all the signs. I think Jake grows the most so far as a leader in this book. This is the first book where he actually acts like a leader instead of just being so in name only. The animorphs become more militant.

Jake is also faced with morally complicated situations that there is really no right answer to. Abandon David, kill him, or let him join. Having a g
Jul 29, 2011 Bonesy added it
Like #17, I have to complain about the cover. Why don't they show Jake morphing into the dragonfly? That would have been so badass! Anyway, this is an excellent book, and the most memorable that make up the David trilogy. The Animorphs are on a mission to stop Visser Three's plans, but wait! It's a trap. And on top of that, David is a traitor. This book is a more interesting read, with quite a few twists. The way the characters interact with David is awesome. He basically reminds you of that dis ...more
May 30, 2016 Benjamin rated it liked it
I feel like the shorter format of these books actually hurt the story a bit even if it was part of a larger story arc. Some of the feelings and ideas would have been better with more development, but it was still a tense and exciting read.
Jul 22, 2014 Alex rated it really liked it
Another excellent Animorphs re-read!

I had a suspicion that something was up with this David character from the get-go. I don't remember what happens, so I have no idea how this particular story arc will end.
Dec 08, 2015 Jerry rated it really liked it
A Quickie Review

Things get even crazier in this second installment of a trilogy; if you've read the series up to this point, brace yourselves!

Score: 4/5
Sep 20, 2014 Almira rated it it was amazing
Wow, Jake. Respect mate. Respect. :]

It's funny how I'm sad even if I know Tobias is not really dead yet. XD

...and then DAVID. I can't wait for Rachel to get really mad.
Timothy Boyd
Jan 24, 2016 Timothy Boyd rated it it was amazing
Fantastic SiFi series for a young reader. I enjoyed reading these with my daughter. The storyline is good and the plot interesting, wouldn't take much to make these great adult SiFi stories. Highly recommended
Nov 19, 2015 Whitney rated it really liked it
Shelves: read-in-2015
Really enjoying this trilogy. I only vaguely remember these ones from my childhood so it's fun to read something that feels fresh.
Valerie Newby
And part two. Now they start to really doubt. And the kid is an idiot. And apparently has a really twisted sense of morality.
May 28, 2014 Rodrigo rated it it was amazing
This animorphs book is very interesting because it is about life or death and that is very crucial .
Jun 23, 2014 Stephen rated it really liked it
Interesting to see how the animorphs deal with an enemy in their midst
Mar 09, 2014 Amantha rated it liked it
Good god the whole David arc was so ridiculous.
May 26, 2014 alternBRUNO°° rated it really liked it
That final battle was definitely something.
« previous 1 3 4 5 6 7 8 9 99 100 next »
There are no discussion topics on this book yet. Be the first to start one »
  • Mouse (Five Ancestors, #6)
  • Code Geass: Lelouch of the Rebellion, Vol. 7 (Code Geass: Lelouch of the Rebellion, #7)
  • Why I'm Afraid of Bees (Goosebumps, #17)
  • Book of Names (Diadem, Worlds of Magic, #1)
  • Fullmetal Alchemist (3-in-1 Edition), Vol. 4
  • Dragon Castle
  • Pursuing Amy (Replica, #2)
Applegate was born in Michigan in 1956. Since then she has lived in Texas, Florida, California, Minnesota, Illinois, North Carolina, and after living in Pelago, Italy for a year, she has moved back to Southern California. She has an eleven year old son named Jake Mates, although she says the Animorph leader is not named after him. In 2003 she and her husband, Michael Grant, her co-author on many p ...more
More about Katherine Applegate...

Other Books in the Series

Animorphs (1 - 10 of 54 books)
  • The Invasion (Animorphs, #1)
  • The Visitor (Animorphs, #2)
  • The Encounter (Animorphs, #3)
  • The Message (Animorphs, #4)
  • The Predator (Animorphs, #5)
  • The Capture (Animorphs, #6)
  • The Stranger (Animorphs, #7)
  • The Alien (Animorphs, #8)
  • The Secret (Animorphs, #9)
  • The Android (Animorphs, #10)

Share This Book

No trivia or quizzes yet. Add some now »