2101. In this final volume, the destructive comet brings Hell to Earth. Aelys, the last hope of the survivors of the collapse, is trapped with her worst enemy in the City-State of France, the last bastion of civilization. From their interstellar Ark stuck in orbit, her parents decide to leave this paradise to join their daughter. But Aelys discovers an unbearable truth about them. Will the Dalbera family survive the end of the world?