Moonpenny is a tiny island in a great lake. When the summer people leave and the ferries stop running, just the tried-and-true islanders are left behind. Flor and her best, her perfect friend, Sylvie, are the only eleven-year-olds for miles and miles -- and Flor couldn't be happier. But come the end of summer, unthinkable things begin to happen. Sylvie is suddenly, mysteriously, whisked away to school on the mainland. Flor's mother leaves to take...