Cassie is tired of the missions. She's tired of the secrecy. She's tired of being an Animorph. So she quits. But the fight is far from over. A human-controller has discovered Cassie's secret.
Katherine Alice Applegate (born 1956) is an American author. Applegate's most popular books are science fiction, fantasy, and adventure novels. She has won the Best New Children's Book Series Award in 1997 in Publishers Weekly.
K. A. Applegate. Wikipedia.