The Suspicion is the twenty-fourth book in the Animorphs series, written by K.A. Applegate. It is narrated by Cassie.

This article is written from a Real World point of view.


Official Description

Cassie, the other Animorphs, and Ax have a few little problems. A few very little problems. Actually, the problems call themselves Helmacrons. They're less than an inch tall, and they're pretty upset at Cassie. They believe she stole their ship. Cassie thought it was just a toy, and gave it to charity. Now the Helmacrons want it back.

So the Animorphs and Ax have a new dilemma. Because the Helmacrons have their own secret weapon: They can shrink other beings down to their size. And, if they don't get their ship back soon, everyone on the planet is in for a little surprise...

Plot Summary

Animorphs suspicion book 24 inside cover anteater

inside Cover

While Rachel tries to convince Cassie to go to the beach with her, Cassie notices what looks like a toy spaceship attached to her water pump. Cassie notes that it's where she hid the blue box, and is a bit unsettled by it, but brushes it off and puts the spaceship with a bunch of other things being donated to charity. They head off to the beach, coming back to find Jake. They notice a different "toy" spaceship attached to the water pump and, while they watch, it detaches itself and flies away. The Animorphs immediately hold a meeting and decide to go to Goodwill to try to retrieve the spaceship that Cassie had seen earlier.

While there, the spaceship starts shooting at them and demands that they surrender and bring them the "power source". It flies away and they realize that it is headed back to the Wildlife Rehabilitation Clinic to retrieve the blue box. Since it is a spaceship, it can travel much faster than their bird morphs, and when they get back, they discover to their dismay that the waterpump was cut open and the spaceship has stolen the blue box. There are some flashes and Tobias, Cassie, and Marco are significantly smaller (about one sixteenth of an inch). Cassie and Marco decide to pretend to surrender to the Helmacrons which are the aliens that are aboard the spaceships, while Tobias stays with Rachel. It is revealed that the Helmacron females are in charge, while the males are feeble and weak. Cassie and Marco claim that they work for the Yeerks (whom the Helmacrons are familiar with and despise), and that Visser Three can get them the box. Eventually they catch up with the Visser, who is at a meeting of The Sharing (along with Chapman and other controllers).

They morph to flies to escape the ship, now being as small as cells. The Controllers get a lucky shot, and destroy the ship, Cassie and Marco barely getting out in time. They find that they have landed on Chapman's head. The other Helmacron spaceship had lured the rest of the Animorphs there in an attempt to steal the blue box. During the meeting, the Helmacrons attack, indiscriminately shrinking everyone at the meeting. Upon seeing the blue box, along with Visser Three's gentle prodding, all the controllers start trying to grab it and there is lots of chaos. Cassie morphs into a whale in order to crash the ship. She and the other Animorphs eventually end up on Ax who is the only Animorph remaining unshrunken. Visser Three and many Controllers also end up on Ax. Visser Three briefly sides with the Animorphs, saying, "I don't know about you Andalites, but these Helmacrons are really, really, really annoying me." Ax, in harrier morph, flies over to the Gardens where they all acquire and morph anteaters, which unshrinks them while in morph. As anteaters, Jake and Rachel slurp up the Helmacrons, and The Animorphs, Controllers and Helmacrons reach an agreement and everyone is unshrunken. Before the book ends, Marco and Cassie give the Helmacron males a bit of a pep talk, and it ends with the Helmacrons, male and females, squabbling with each other.


Featured Characters:

Supporting Characters:

  • Some Goodwill workers


Contribution to Series story Arc

  • Aliens called the Helmacrons are introduced. They will return in Book 42, and will form part of a plot point in Book 39.


Morpher Morphs acquired Morphs used
Jake Anteater Peregrine Falcon, Cockroach, Siberian Tiger, Anteater
Rachel Anteater Bald Eagle, Cockroach, Grizzly Bear, Anteater
Cassie Anteater Osprey, Fly, Wolf, Anteater 
Marco Anteater Osprey, Fly, Silverback Gorilla, Anteater
Tobias Anteater Anteater
Ax -- Human (main), Wolf Spider, Northern Harrier
Visser Three Anteater Human, Anteater


  • The cover quote is, "What counts is on the inside. Most of the time...."
  • The inside cover quote is, "At least it's better than being an ant...."
  • This is the last book to feature the 'old' Watch Animorphs TV on Nickelodeon logo on the front cover. Books 25-29 do not have any logo, and starting with book 30 a new one is introduced.
  • ANIBASE : Orson Watch: If you look very carefully at the crowd observing the anteaters on the stepback of this book, you can make out a cat poking its head between two of the people. The cat is none other than Orson, making one of her many cameo appearances.
  • The cover morph, of Cassie to Anteater, was made into a transforming Taco Bell toy.


International Covers

Taken from

Main Series #1 The Invasion | #2 The Visitor | #3 The Encounter | #4 The Message | #5 The Predator | #6 The Capture | #7 The Stranger | #8 The Alien | #9 The Secret | #10 The Android | #11 The Forgotten | #12 The Reaction | #13 The Change | #14 The Unknown | #15 The Escape | #16 The Warning | #17 The Underground | #18 The Decision | #19 The Departure | #20 The Discovery | #21 The Threat | #22 The Solution | #23 The Pretender | #24 The Suspicion | #25 The Extreme | #26 The Attack | #27 The Exposed | #28 The Experiment | #29 The Sickness | #30 The Reunion | #31 The Conspiracy | #32 The Separation | #33 The Illusion | #34 The Prophecy | #35 The Proposal | #36 The Mutation | #37 The Weakness | #38 The Arrival | #39 The Hidden | #40 The Other | #41 The Familiar | #42 The Journey | #43 The Test | #44 The Unexpected | #45 The Revelation | #46 The Deception | #47 The Resistance | #48 The Return | #49 The Diversion | #50 The Ultimate | #51 The Absolute | #52 The Sacrifice | #53 The Answer | #54 The Beginning
Megamorphs The Andalite's Gift | In the Time of Dinosaurs | Elfangor's Secret | Back to Before
Chronicles The Andalite Chronicles | The Hork-Bajir Chronicles | VISSER | The Ellimist Chronicles
Alternamorphs The First Journey | The Next Passage
TV Tie-Ins Meet the Stars of Animorphs

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