On Boneyard Island, Georgia, where everyone's weirdly kin, 13-year-old Lucille is marooned when her mother goes AWOL with an old flame, leaving Lucille with only her father's ashes, two half-siblings, and Will, the misanthropic manager of the island's only motel. The abandonment kills hope of Lucille's promised snorkeling trip to the Florida Reef before ocean heat kills the coral and illusions she’s harbored about her mother’s sanity. Everybody...