Tobias and the other Animorphs discover that the Yeerks, a parasitic alien race bent on enslaving Earth, plan to test a device that could put an end to the Animorphs' fight against the Yeerks.

An explosion occurs that blows everything millions of years back in time. Back to the age of dinosaurs.

Aldrea, a young member of the outpost the Andalite race has placed on the planet of the Hork-Bajir, must help her native friend Dak when the ruthless, parasitic Yeerks try to enslave his people.

Jake, an average suburban kid, is confronted one night by a creature from space who teaches him how to morph into the forms of other creatures. This fantastic, unpredictable, edge-of-your-seat series can best be described as an "X-Files" for kids--plus a whole lot more! Jake, Rachel, Cassie, Tobias, and Marco are the Animorphs--five kids who can change into any animal they touch. The bottom of each page is animated with "flip-book" images, so as kids...

When Rachel morphs into a starfish she has the ability to regenerate her limbs, but when she demorphs back to being Rachel there is more to her than when she started out, a twin who is super strong and even nastier than she is.

"Rachel is still reeling from the news that Earth is secretly under attack by parasitic aliens, the Yeerks. Now she and her friends are the planet's only defense -- five kids who, purely by chance, stumbled onto a downed spacecraft and were given the power to morph into any animals they touch."--