Goblin Monday (Goosebumps House of Shivers #2) by R.L. Stine

A brand new Goosebumps series is here―prepare to be scared like never before!

Mario Galagos is joining his best friends Todd and Jewel on their annual holiday visit to snowy Vermont. Everything looks picture perfect at first. But then Mario finds a small statue of a strange, ugly creature in the garden and brings it inside. Little does he know the stone creature is actually a real, live goblin. By bringing it inside, Mario has just started a war with all of its hideous goblin friends!