Rachel is still reeling from the news that Earth is secretly under attack by parasitic aliens, the Yeerks. Now she and her friends are the planet's only defense -- five kids who, purely by chance, stumbled onto a downed spacecraft and were given the power to morph into any animals they touch.

The team's best lead is their assistant principal, Mr. Chapman, who is the human host to a high-ranking Yeerk official. It's not much, but Rachel's always been a daredevil, and she volunteers to infiltrate Chapman's home.

Rachel is tough. She's fearless. But what she finds inside may be more than even she can handle.

CHRIS GRINE is the creator of the Eisner Award-nominated Chickenhare and Time Shifters. He's been making up stories since he was a kid, and not just to get out of trouble with his parents. Nowadays, Chris spends most of his time writing and illustrating books, drinking lots of coffee, and sleeping as little as possible. He spends his free time with his wife, playing with his kids, watching movies, and collecting action figures (but only the bad guys).

K.A. APPLEGATE is the author of the bestselling Animorphs series, as well as the Remnants and Everworld series, Home of the Brave, and the Roscoe Riley Rules series. She lives in Tiburon, California.