List of Animorphs books

A collection of Animorphs books including selected companion books.

This is a list of all books in the Animorphs series by K. A. Applegate. For a list of authors who ghostwrote much of this series using Applegate's name, see Animorphs § Ghostwriters.

Animorphs main series

There are fifty-four books in the main series.

#	Title	First Published	ISBN	Ghostwriter	Narrator
1	The Invasion	June 1996	ISBN 0-590-62977-8		Jake
2	The Visitor	June 1996	ISBN 0-590-62978-6		Rachel
3	The Encounter	August 1996	ISBN 0-590-62979-4		Tobias
4	The Message	October 1996	ISBN 0-590-62980-8		Cassie
5	The Predator	December 1996	ISBN 0-590-62981-6		Marco
6	The Capture	February 1997	ISBN 0-590-62982-4		Jake
7	The Stranger	April 1997	ISBN 0-590-99726-2		Rachel
8	The Alien	July 1997	ISBN 0-590-99728-9		Ax
9	The Secret	August 1997	ISBN 0-590-99729-7		Cassie
10	The Android	August 1997	ISBN 0-590-99730-0		Marco
11	The Forgotten	September 1997	ISBN 0-590-99732-7		Jake
12	The Reaction	October 1997	ISBN 0-590-99734-3		Rachel
13	The Change	November 1997	ISBN 0-590-49418-X		Tobias
14	The Unknown	January 1998	ISBN 0-590-49423-6		Cassie
15	The Escape	January 1998	ISBN 0-590-49424-4		Marco
16	The Warning	March 1998	ISBN 0-590-49430-9		Jake
17	The Underground	April 1998	ISBN 0-590-49436-8		Rachel
18	The Decision	May 1998	ISBN 0-590-49441-4		Ax
19	The Departure	July 1998	ISBN 0-590-49451-1		Cassie (some chapters by Jake)
20	The Discovery	August 1998	ISBN 0-590-49637-9		Marco
21	The Threat	August 1998	ISBN 0-590-76254-0		Jake
22	The Solution	September 1998	ISBN 0-590-76255-9		Rachel
23	The Pretender	November 1998	ISBN 0-590-76256-7		Tobias
24	The Suspicion	December 1998	ISBN 0-590-76257-5		Cassie
25	The Extreme	January 1999	ISBN 0-590-76258-3	Jeffrey Zeuhlke	Marco
26	The Attack	February 1999	ISBN 0-590-76259-1		Jake
27	The Exposed	March 1999	ISBN 0-590-76260-5	Laura Battyanyi-Weiss	Rachel
28	The Experiment	March 1999	ISBN 0-590-76261-3	Amy Garvey	Ax
29	The Sickness	May 1999	ISBN 0-590-76262-1	Melinda Metz	Cassie
30	The Reunion	June 1999	ISBN 0-590-76263-X	Elise Donner	Marco
31	The Conspiracy	July 1999	ISBN 0-439-07031-7	Laura Battyanyi-Weiss	Jake
32	The Separation	July 1999	ISBN 0-439-07032-5		Rachel (split between Nice Rachel and Mean Rachel)
33	The Illusion	August 1999	ISBN 0-439-07033-3	Ellen Geroux	Tobias
34	The Prophecy	September 1999	ISBN 0-439-07034-1	Melinda Metz	Cassie/Aldrea
35	The Proposal	October 1999	ISBN 0-439-07035-X	Jeffrey Zeuhlke	Marco
36	The Mutation	November 1999	ISBN 0-439-10675-3	Erica Bobone	Jake
37	The Weakness	December 1999	ISBN 0-439-10676-1	Elise Smith	Rachel
38	The Arrival	January 2000	ISBN 0-439-10677-X	Kimberly Morris	Ax
39	The Hidden	February 2000	ISBN 0-439-10678-8	Laura Battyanyi-Weiss	Cassie
40	The Other	March 2000	ISBN 0-439-10679-6	Gina Gascone	Marco
41	The Familiar	April 2000	ISBN 0-439-11515-9	Ellen Geroux	Jake
42	The Journey	May 2000	ISBN 0-439-11516-7	Emily Costello	Rachel (some chapters by Marco)
43	The Test	June 2000	ISBN 0-439-11517-5	Ellen Geroux	Tobias
44	The Unexpected	July 2000	ISBN 0-439-11518-3	Lisa Harkrader	Cassie
45	The Revelation	August 2000	ISBN 0-439-11519-1	Ellen Geroux	Marco
46	The Deception	September 2000	ISBN 0-439-11520-5	Elise Donner	Ax
47	The Resistance	October 2000	ISBN 0-439-11521-3	Ellen Geroux	Jake/Isaiah Fitzhenry, in the Civil War
48	The Return	November 2000	ISBN 0-439-11522-1	Kimberly Morris	Rachel
49	The Diversion	December 2000	ISBN 0-439-11523-X	Lisa Harkrader	Tobias
50	The Ultimate	January 2001	ISBN 0-439-11524-8	Kimberly Morris	Cassie
51	The Absolute	February 2001	ISBN 0-439-11525-6	Lisa Harkrader	Marco
52	The Sacrifice	March 2001	ISBN 0-439-11526-4	Kimberly Morris	Ax
53	The Answer	April 2001	ISBN 0-439-11527-2		Jake
54	The Beginning	May 2001	ISBN 0-439-11528-0		Everyone

Companion books

#	Title	First Published	ISBN	Notes
Megamorphs 1	The Andalite's Gift	May 1997	ISBN 0-590-21304-0
Megamorphs 2	In the Time of Dinosaurs	June 1998	ISBN 0-590-95615-9
Megamorphs 3	Elfangor's Secret	May 1999	ISBN 0-590-03639-4
Megamorphs 4	Back to Before	April 2000	ISBN 0-439-17307-8
	The Andalite Chronicles	December 1997	ISBN 0-590-10971-5	This book is divided into three parts: #1 - Elfangor's Journey, #2 - Alloran's Choice, and #3 - An Alien Dies. Each part was originally released as a separate book to school book clubs.
	The Hork-Bajir Chronicles	November 1998	ISBN 0-439-04291-7
	Visser	October 1999	ISBN 0-439-08764-3
	The Ellimist Chronicles	October 2000	ISBN 0-439-21798-9
Alternamorphs 1	The First Journey	March 1999	ISBN 0-439-06164-4	Ghostwritten by Tonya Alicia Martin. This is a game-style book that exists outside the main series continuity.
Alternamorphs 2	The Next Passage	March 2000	ISBN 0-439-14263-6	Ghostwritten by Emily Costello. This is a game-style book that exists outside the main series continuity.

Chronological list

This is a chronological list of the Animorphs books by K. A. Applegate, as applies to storyline continuity.

• The Andalite Chronicles (c. 1976, 1980s, 1997)
  • This book is divided into three parts: #1: Elfangor's Journey, #2: Alloran's Choice, and #3: An Alien Dies.
• 1: The Invasion (Spring 1997)
• 2: The Visitor
• 3: The Encounter
• 4: The Message
• 5: The Predator
• 6: The Capture
• 7: The Stranger
• Megamorphs 1: The Andalite's Gift (Summer 1997)
• 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—(c. 1998)
• Megamorphs 2: In the Time of Dinosaurs—(Sario Rip time travel to 65,000,000 years ago.)
• 19: The Departure
• The Hork-Bajir Chronicles (1966, 1968–69, 1998)
  • Although the events in this story occur between The Ellimist Chronicles and The Andalite Chronicles, the entire story is being told by Jara Hamee to Tobias after book #13, The Change, and before the events of #23 The Pretender. Tobias makes reference to his restlessness and the fact that there were no missions planned (Prologue, pg ix). However, in The Pretender, (pg 12) Tobias makes reference to the fact that they had "worked plenty lately, dealing with the horrifying matter of David, the first new Animorph." This places the last possible "break" before book #20, the first book in the David trilogy
• 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
• Megamorphs 3: Elfangor's Secret (Time Matrix time travel to 10/25/1415, 12/25/1776, 10/21/1805, 1934, 6/6/1944, and 1967)
• 30: The Reunion—(sometime a little bit before or after 12/18/98)
• 31: The Conspiracy
• 32: The Separation—(c. 1999)
• 33: The Illusion
• 34: The Prophecy
• 35: The Proposal
• Visser (1976, 1980s, 1991–1999)
  • The trial chronicled in Visser is set during and after the events of The Proposal, but the book also covers events before The Andalite Chronicles.
• 36: The Mutation
• 37: The Weakness
• 38: The Arrival
• 39: The Hidden
• 40: The Other
• Megamorphs 4: Back to Before (1999, experimental timeline to 1997)
• 41: The Familiar
• 42: The Journey
• 43: The Test
• 44: The Unexpected (c. 2000)
• 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
• The Ellimist Chronicles (story stretching billions of years into the past)
  • Technically this is set during the same time as the first chapters of The Beginning even though it covers events set far before The Andalite Chronicles.
• 54: The Beginning (2000-c. 2004)