Bee's mom has a job in New York City for the summer, so Bee is being sent to summer camp. She's not excited about it. Being around other people is hard for her, plus she knows nothing about campfires, she's not a good swimmer and she's never even been in a canoe. When she first arrives, things go pretty much as she expected. The other girls either make fun of her or ignore her, and the woods surrounding the camp give her the creeps: she keeps hearing elusive music coming from somewhere in the distance, and there's something off about it. But then Zippy comes on the scene - an oddball like Bee, but with a lot more confidence and hard-won knowledge gleaned from many summers spent at this exact camp. And most importantly, Zippy has also discovered mysterious behaviour going on at the camp: the older girls from the Hawks cabin are sneaking out to do... something. They're always exhausted, and their flashlight batteries are running out at an