"Snowbirds will turn your image of the Amish upside down. Lucy will grab your heart and run away with it." --Robin MacCready, winner of the Edgar award for Buried

Every year, Lucy waits eagerly for the arrival of the "snowbirds," the Old Order Amish who come trundling into Florida on buses from the north, bringing Lucy's best friend Alice, with whom she's spent every winter she can remember. This winter is different. At sixteen, Alice is in the middle of "Rumspringa," a season in which Amish teens try out forbidden temptations, in order to get them out of their system. Lucy is part of a different sect, in which teens aren't allowed such bold experimentation, and she's fighting to keep up as Alice races from one wild party to the next. Then, one night after just such a party, Alice vanishes. Wracked by guilt, Lucy knows that she should have been watching out for Alice, but instead, she was kissing Faron, an Older Order boy shunned by his society. Now, Lucy plunges into a search for her best friend--while also hiding her own secret, which could put her in even more danger.