Plot Summary:The Animorphs have unlocked Elfangor's disk and Tobias is now able to appear in human morph. Meanwhile, Jake has been captured in the Yeerk Pool and learns of a new breed of Yeerk, and that Cassie and Ax are scheduled to be infested. Tobias, Rachel and Marco must use all their wits to battle Visser Three and save Jake, Ax and Cassie.
The Animorphs have unlocked Elfangor's disk and Tobias is now able to appear in human morph. Meanwhile, Jake has been captured in the Yeerk Pool and learns of a new breed of Yeerk, and that Cassie and Ax are scheduled to be infested. Tobias, Rachel and Marco must use all their wits to battle Visser Three and save Jake, Ax and Cassie.