Camp Nowhere is a novella written by R. L. Stine. It was first published 2001.
Description[]
Russell is a little worried about summer camp this year. He's a senior camper -- which means he has to go on the senior trip. It's a wild and dangerous canoe ride over Forbidden Falls. Some counselors tell a story about the senior campers who went over the Falls and were never seen again. But that can't be true -- can it? Russell climbs into the canoe, despite his fear. But he doesn't know he's really paddling straight into The Nightmare Room.