Animorphs 10 - The Android

Finding an ally in the android Erek King, the Animorphs come to appreciate his nonviolent nature and seek to collect the vital information he has before they lose their fight against the evil Yeerks.
The Animorphs have found an ally, an android named Erek King. Even though he's nonviolent, he has lots of vital information--and he may just be the only hope the Animorphs have.