Maggie Thrash has spent basically every summer of her fifteen-year-old life at the one-hundred-year-old Camp Bellflower for Girls, set deep in the heart of Appalachia. She's from Atlanta, she's never kissed a guy, she's into Backstreet Boys in a really deep way, and her long summer days are full of a pleasant, peaceful nothing . . . until one confounding moment.

A split-second of innocent physical contact pulls Maggie into a gut-twisting love for an older, wiser, and most surprising of all (at least to Maggie), female counselor named Erin. But Camp Bellflower is an impossible place for a girl to fall in love with another girl, and Maggie's savant-like proficiency at the camp's rifle range is the only thing keeping her heart from exploding. When it seems as if Erin maybe feels the same way about Maggie, it's too much for both Maggie and Camp Bellflower to handle, let alone to understand.