Slappy Birthday to You (Goosebumps SlappyWorld #1)

The evil dummy comes to life to tell his own twisted tales and scary stories! It's bad enough Ian Barker has to spend his twelfth birthday with his sister and their two annoying cousins. But when Ian gets a Slappy dummy from his dad, things go from bad to worse. When Slappy's in charge, you don't fight over him, he fights over you!