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"Visser One has returned to Earth. But for a grim purpose. She is being held at the Yeerk pool. She is to be executed as a traitor. [...] Visser Three will then be elevated to the post of Visser One. And, there are rumors — nothing concrete, but suggestions — that the execution of Visser One is part of an overall change affecting Earth."
Ax to Peter and the Animorphs[src]

The Revelation, published in August 2000 and written by Ellen Geroux based on an outline by K.A. Applegate and Michael Grant, is the forty-fifth book in the Animorphs series. It is the fourteenth book narrated by Marco and his ninth book as sole narrator.


Official Description

Things were already really weird. Fighting aliens. Battling to have Earth. And still trying to be normal. Marco, the other Animorphs, and Ax are almost used to it. But things are changing. The Yeerk invasion of Earth started out passively. Secretly. But now, everything seems to be stepped up. Even Marco's father is talking about some top secret project at his job. Something about developing Zero-space...

Marco doesn't even know whether his father is a Controller. But he does know he's not going to let the Yeerks win this one. They've already got his mother. And Marco will do anything it takes to save his father. Anything...

Plot Summary

To be added



Supporting Characters:


Other Characters:



Major/Highlighted Events

  • Marco's father, Peter, discovers Z-space and creates a Z-space transponder. This attracts the attention of the Yeerks, who attempt to infest him, causing Marco to intervene and save his father from infestation.
  • Marco demorphs in front of his father and reveals everything to him, including the fact that Eva is the host body to Visser One.
  • Marco and Peter are legally declared dead after Marco enlists Erek King and Mr. King to fake their deaths, making it seem like the Yeerks vaporized the pair using Dracon beams.
  • The Animorphs discover that Visser One has returned to Earth and is being held at the Yeerk pool, where she is being tortured and denied access to Kandrona rays. Additionally, they discover that Visser Three will most likely become the new Visser One.
  • The Animorphs steal a Bug fighter and, using Hork-Bajir morphs, infiltrate the Yeerk pool complex, where Marco manages to rescue Eva and kill Visser One.
  • Marco is distraught to hear that his father loves Nora Robbinette, his current wife, as much as he does Eva. Marco neglects to rescue Nora, allowing the Yeerks to infest her, mentally remarking that a part of him wanted her out of their lives. After being reunited with Eva, Peter asks Marco if Nora can be saved, prompting Marco to lie to his father that Nora was always a Controller whom the Yeerks had placed in his life to keep an eye on him. Peter accepts this story as Marco muses that while his conscience is heavy with the permanent damage he has wrought with his lie, it was a decision he chose to make in order to keep his family together.
  • The Animorphs use the transponder to place a call to the Andalite military fleet.


Morpher Morphs acquired Morphs used
Jake -- Siberian Tiger, Hork-Bajir
Rachel -- Grizzly Bear, Hork-Bajir (Jara Hamee)
Tobias -- Hork-Bajir (Ket Halpak)
Cassie -- Wolf, Hork-Bajir
Marco Hork-Bajir (Controller) OspreySilverback Gorilla (Big Jim), Black Garden Ant (partially), Cockroach, Hork-Bajir (second Hork-Bajir morph)
Ax -- Northern Harrier, Human (Main), Hork-Bajir (Jara Hamee)
Visser Three -- Bievilerd


  • The cover quote is, "Sometimes there's no escape. Even for the Animorphs..."
  • The inside cover quote is, "Sometimes the truth won't set you free...." This is a reference to the Bible verse John 8:32 "And you will know the truth, and the truth will set you free".
  • Starting with this book and continuing until the end of the series, the Animorphs logo on the cover has a black background instead of a foiled color background.
  • On the inside cover, illustrator David Mattingly's cat Orson can be seen on the speedometer.
  • This is the first book in the final arc of the series, which comprises of ten books (The Revelation to The Beginning).
  • This is the thirteenth book in which the cover does not depict a morph acquired in the book; Marco acquired the ant in The Predator.
  • The cover morph is never actually completed in the book. Marco morphs ant partially then demorphs.
  • This marks the second time where an Animorph acquires a morph they already possess (excluding human morphs), with Marco acquiring a Hork-Bajir while already possessing a Hork-Bajir morph.
  • This is the eighth book in which the narrating character is the only one to acquire a morph.
  • Marco mentions Peter meeting Ax before (The Alien), his experiences of diving from planes (The Weakness) and demorphing in mid-air (The Encounter and The Weakness), and recalls the outcome of what they did to David (The Solution) as well as the trial where he last saw his mother (VISSER),
  • This marks the final instance of Ax playing with a spoken word while in his human morph. While Ax stopped speaking with multiple mouth sounds after The Conspiracy, he continued to repeat or play with a word or two occasionally until this book.
  • This book was sold in a clear cellophane wrapper with a demo CD of the Animorphs PC game Animorphs: Know the Secret.
  • Peter's car in the interior illustration appears to be a late-90s Jeep Cherokee, based on its interior.



U.S. Images

International Covers

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
Graphic Novels #1 The Invasion | #2 The Visitor | #3 The Encounter | #4 The Message | #5 The Predator | #6 The Capture