In a small South Carolina town, where it seems little has changed since the Civil War, sixteen-year-old Ethan is powerfully drawn to Lena, a new classmate with whom he shares a psychic connection and whose family hides a dark secret that may be revealed on her sixteenth birthday.

Swarms of locusts, record-breaking heat, and devastating storms ravage Gatlin as Ethan and Lena struggle to understand and control the impact of Lena's claiming, which is even causing her family members' abilities to dangerously misfire.