Never Cry Werewolf by Heather Davis

There are a lot of things Shelby expects when she's sent off to brat camp: the deadly heat, strict rules, hard labor... What she doesn't expect, however, is Austin Bridges III, son of a notorious rock star. When Austin's stripped of his vital, medicinal serum at the start of camp, Shelby thinks it's up to her to help him. With little time left until the next full moon, the two must find a way save Austin and protect his family's dark secret.