Billy is going to camp for the first time, and he's a little nervous. With the weird bus driver, the strange counselors, and the totally demented camp leader, Billy is finding that his stay at Camp Nightmoon is turning into a real nightmare! And then some of his fellow campers start to disappear -- and no one will listen to Billy! What is happening to the other campers? Why won't his parents answer his letters? What's lurking out there after dark?