Night of the living dummy II / Stine, R. L

When Amy's ventriloquist dummy, Dennis, is broken, her father buys her Slappy, unaware that the dummy is possessed by an evil presence.

Amy is thrilled when her father brings home Slappy, a ventriloquist dummy he found in a local pawn shop, but her enjoyment turns to terror when she discovers Slappy has an evil routine of his own.