(Goosebumps Horrorland) Welcome to Camp Slither" by R.L. Stine

"Welcome to Camp Slither" by R.L. Stine

 is a Goosebumps HorrorLand book where Boone Dixon arrives at a summer camp that seems fun—until he notices slimy snakes everywhere. As creepy events unfold, Boone learns the terrifying truth: the camp hides a deadly secret, and escaping might not be possible