Revenge of the Living Dummy (Goosebumps Horrorland #1) – R. L. Stine

It's a whole new ride from master of horror and bestselling author R.L. Stine–with a story so fiendish that it can't be contained to just one book! Britney Crosby thinks her cousin Ethan is pretty weird—and she happens to be right. Ethan won't stop tormenting Britney with an old ventriloquist's dummy. And the puppet has plans for Britney, too! Next, someone will be offered a vacation at a popular "scream park." An entire week for free? You'd have to be a real dummy to refuse that! But some guests aren't allowed to escape HorrorLand after just six days and seven frights…