The Whispering Pines (Exit 13, Book 1)

"Something has been going on ever since eleven-year-old Ash McGinn and his older sister, Willow, checked in to the Exit 13 Motel. Their parents don't seem to notice anything strange, but the rooms and the hallways don't go where they're supposed to, the receptionist looks like he comes straight out of a horror movie, and there are creepy woods out back where Ash is sure some kind of monster is lurking. Ash knows it is up to him and Willow to get to the bottom of what's happening. If not, they might never be able to check out..."--