Haunted Halloween: Movie Novel (Goosebumps the Movie 2)

Sarah is tired of worrying about what her younger brother, Sonny, has gotten into. He's always doing dangerous science experiments, and it's up to her to keep him out of trouble.

When Sonny and his friend Sam find a ventriloquist dummy labeled "Slappy" in an abandoned house, they decide to take him home. What they don't realize is that they've brought him to life . . . and he's evil. Whoops.

Slappy starts using his dark magic powers to make Halloween decorations come alive all across town - and they are not friendly! Even worse, he kidnaps Sarah and Sonny's mom! Only Sarah, Sonny, and Sam can stop Slappy before it's too late. But will he end up stopping them first?