Rachel's got some pretty strange stuff happening. She can't
control her morphing. One minute, she's doing homework.
The next, she's morphing a full-grown crocodile, and -- without
returning to human form -- she becomes an elephant. That's
when the floor gives way and Rachel finds herself looking up
at what used to be the kitchen ceiling.

What's going on? No one's sure, but Rachel and the other
Animorphs have to figure it out -- quickly. Because if
someone sees Rachel's out-of-control morphing, the other
Animorphs and Ax are in for some serious trouble...