The Pretender
K.A. Applegate
Animorphs (23)
The Forgotten
Animorphs (11)
The Reaction
Animorphs (12)
The Unknown
Animorphs (14)
The Stranger
Animorphs (7)
The Alien
Animorphs (8)
The Capture
Animorphs (6)
The Andalite's Gift
Animorphs (7.5)