38 books in series

Animorphs

Animorphs is a 42-book series with 38 released primary works first released in 1996 with contributions by K.A. Applegate, Katherine Applegate, Michael Grant, K. A. Applegate, and Кэтрин А. Эпплгейт.

The Invasion
The Visitor
The Encounter
The Message
The Predator
The Capture
The Stranger
The Alien
The Secret
The Android
The Forgotten
The Reaction
The Andalite Chronicles
The Change
The Unknown
The Escape
The Warning
The Underground
The Decision
The Departure
The Discovery
The Threat
The Solution
The Hork-Bajir Chronicles
The Pretender
The Suspicion
The Extreme
The Attack
The Exposed
Das Experiment
The Sickness
The Reunion
The illusion
Visser
The Mutation
The Arrival
The Familiar
The Unexpected
The Ellimist Chronicles
The Ultimate
The Sacrifice
The Beginning