K. A. Applegate
Book 19 of Animorphs
Language: English
Google Books ISBN
Fantasy & Magic Juvenile Fiction
Publisher: Scholastic
Published: May 15, 1998
Description:
Cassie's had it. After the last mission, she realizes she's getting tired of missions. Tired of battles. Tired of being an Animorph. She decides that she just can't do it anymore. So she quits.