Body Switchers from Outer Space
by R. L. Stine
Will "the Spill" is a total klutz. He'd give anything to be Chad--the most popular kid in school--just for one day. Chad never trips, or falls, or drops anything.Then Will gets his wish. Chad says he's got a body-switching machine. And he wants to switch bodies with Will!Will decides to do it. And it works. He loves being Chad--until he finds out Chad's horrible secret...and realizes he's trapped in Chad's body forever!