Applegate, K.A

In an effort to help start a rebellion against the Yeerks on the Hork-Bajir home world, Cassie agrees to become the host for the persona of a dead alien.

Chilling adventure of an animorph's change into an eagle.

One animorph becomes a dolphin to save the day.

Jake, the leader of the Animorphs, is given the chance to reverse his decision to start the group, but once he accepts the offer, strange things begin to happen and the team is forced to confront the new reality.

When Marco's friend David finds the morphing box, he puts all of the Animorphs in danger by offering to sell it to Visser Three, and now the group must decide if they should let David die, or allow him to become the new Animorph.

Three parts to the story of how the animorphs got their ability to morph.

A group of five find themselves in the Eire of long ago, where they must battle giants and gods.

The Yeerks are working on a drug that saps humans of their free will but the Animorphs show them that human free will runs deeper than any drug can reach.