Billy’s summer camp turns scary when Camp Nightmoon becomes Camp Nightmare! Why are all the counselors acting so weird? What is hidden in the forbidden bunk? What lurks around the camp late at night? The counselors are not answering any of Billy’s questions. The campers are disappearing one by one, and the counselors do not even care. Billy wants to know the secrets about Camp Nightmoon, but can he find the answers before he disappears?