Marco, the other Animorphs, and Ax have managed to find out where the Yeerks are planning to build their next ground-based Kandrona. That's a good thing. The location is supposed to be somewhere near the North Pole. That's a bad thing. The Animorphs and Ax know that the Yeerks are a "cold-blooded" species, but this is a little nuts! Who wants to be near the North Pole without Arctic morphs -- and wearing spandex?

Book #26 The Attack

The Ellimist has helped the Animorphs many times. He saved them when they were in roach morph and almost eaten by a Taxxon. He helped restore Tobias's morphing power. But it turns out the Ellimist is not all-powerful. He has an enemy: the Crayak.

Now the Ellimist and the Crayak are going head-to-head. The question is: Can five Animorphs and an Andalite help the Ellimist restore balance to the universe?

Book #27 The Exposed

The Animorphs have no ally more powerful than Erek the Chee. But now he is helpless. Paralyzed. Exposed. His hologram has stopped working. And the Animorphs must find out why.