Author: K. A. Applegate
Publisher: Scholastic Paperbacks (2015-09-18)
It was really bad when Jake found out his older brother was one of them. It was even worse when Tobias stayed in his morph too long. But nothing compares to the horror the Animorphs are about to face. Nothing.
Jake, Rachel, Tobias, Cassie, and Marco have a feeling they know where the Yeerks' new base is located. And they've found out how to get in - how many people will really notice a few flies on the wall? But they never figured that they might get caught. Or that Jake could fall into the Yeerk pool. That Jake could become a human-Controller.