Welcome to Camp Nightmare by R. L. Stine
Next Summer you'll stay at home.if you survive! The food isn't great. The counselors are a little strange. And the camp director, Uncle Al, seems sort of demented. Okay, so Billycan handle all that. But then his fellow campers start to disappear. What's going on? Why won't his parents answer his letters? What's lurking out there after dark? Camp Nightmoon is turning intoCamp Nightmare! And Billy might be next.