Attack of the Jack! (Goosebumps SlappyWorld Series 2)

In this spinoff to the New York Times–bestselling Goosebumps series, two siblings rescue their uncle when he mysteriously turns into a Jack-in-the-box.

Devin and his sister Violet are visiting their Uncle Jack for the summer. He lives in an old house by the seashore. Jack was a sailor and he has collected strange and fascinating items from the sea. Exploring a back room, Devin and Violet discover a locked trunk. A pirate's chest. The trunk is wrapped in old, heavy chains and locked with a ...