When eight-year-old Tessa Lee and her brother, Travis, are abandoned in a campground by their desperate mother and her boyfriend of the moment, they are left with only two things: a phone number written in Magic Marker on Travis's back and their mother's favorite housecoat, which she leaves wrapped around her sleeping children. This housecoat, painted with tiny fireflies, becomes totemic for Tessa Lee, providing a connection to her past and to the...