The Animorphs have met the Ellimist. He helped to save the kids when they were about to be eaten by a Taxxon. He helped to free two Hork-Bajir and restored Tobias's morphing ability. But even though the Ellimist has enormous power, he is not all-powerful. He has an enemy. The Crayak.The Crayak and the Ellimist have decided that a battle is necessary to prove their ultimate power. But they don't intend to fight each other. The Ellimist will choose the Animorphs and Erek the Chee as his champions; the Crayak will choose his own army. If the Animorphs lose, they'll be erased from the universe altogether. And without any Animorphs, there'll be no one left to fight the Yeerks...

The Animorphs ally with the Ellimist against the Crayak.

The battle is still raging, and it's out-and-out war. Jake and the other Animorphs have found a way to slow the Yeerks down, but now the Yeerks have decided the best way to win is to just destroy everything and everyone who gets in their way.Just when things look hopeless, Jake and the others discover help where they least expected: Taxxons. Creatures so foul and heartless, it's hard to believe that they're capable of having any feelings. But Jake and the others soon discover that the Taxxon resistance has its own problems with the Yeerks. And for once, it looks like Earth may have a chance....

Marco and the other Animorphs have managed to find out where the Yeerks are planning to build their next ground-based Kandrona. That's a good thing. But the location is supposed to be somewhere near the North Pole. That's a bad thing. The Animorphs 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?Even so, the kids know that if the Yeerks succeed with their plan, Earth is pretty much done for. And Marco and the other Animorphs aren't quite ready to give up the fight.

He is called the Ellimist. A being with the ability to alter space and time. A being with a power that will never be fully understood. He is the reason Elfangor came to Earth. He is the reason the Earth now has a fighting chance. And though his actions never seem quite right or wrong, you can be certain they are never, ever what anyone expects. This is the beginning and the middle of the story. A story that needs to be told in order to understand what might happen to the future. The future of the Animorphs. The future of humanity. The future of Earth. He is called the Ellimist. And this is his story...

Elfangor-Sirinial-Shamtul is an Andalite war prince--the one who gave the Animorphs the power to morph. "The Andalite Chronicles" is the story of how this warrior-cadet ended up on planet Earth Ages 9-12. Pub: 12/97.

Rachel is falling apart. Literally. Her newest morph has the ability to regenerate its limbs, but when Rachel demorphs there's a lot more Rachel than when she started out. One more Rachel, to be exact. Rachel is an okay person to have around, but two could be considered overkill. Especially two Rachels with completely opposite personalities: one is pathetically weak; one is super strong and super nasty.Now the Animorphs have to figure out a way to put Rachel back together again. Because if it's up to the "twins," Rachel the weak will surrender to Visser Three. Rachel the super bold will try to single-handedly take him down. And twice the trouble may be twice as much as the other Animorphs and Ax can handle...

We found out who Visser Four is. And he has found the Time Matrix, the machine Elfangor had hidden in the abandoned construction site. The same place we met him on a night none of us will ever forget. Especially me. Now Visser Four has the Matrix, and he plans to use it to become Visser One.But Jake, Rachel, Cassie, Marco, Ax and I can't let that happen. We can't let him alter time so that the Yeerks will win the invasion. So we're prepared to make the ultimate sacrifice. Eventually, one of us will lose this fight...

The Animorphs have no ally more powerful than Erek the Chee. But now he is helpless.