No one cares when Lila Carson’s ten-year-old brother Beau disappears. He can’t speak. He throws tantrums. He’s a useless Carson, one of those kids in a broken-shuttered house that lost its glory when his father died. When the sheriff and his good ol’ boy deputies show up to investigate, they eye up Lila and call her twin brother, Quentin, names. A closeted bisexual girl in the South, she’s terrified. Lower Congaree recites it like an eleventh commandment: Don’t go in that swamp. But as the long night drags on, it’s clear Beau disappeared behind those ancient trees. The sheriff’s deputies won’t risk going back there. Lila might not have a choice.