It began with 6. It will end with 5. No one ever thought it would be come to this. Jake, Rachel, Tobias, Cassie, Marco, and Ax know that even if they could have warned people in the beginning, no one would have believed their story. A story about an invasion of parasitic aliens. So, for all this time, Jake, the other Animorphs, and Ax have secretly held the Yeerks at bay. But those days are over. It’s come down to a final battle between the Yeerks and Animorphs. And no one knows who will win, lose, or live...