They thought Achilles died at Troy. Then they touched his daughter. For fifteen years, Greece’s greatest warrior has hidden as a quarry worker, keeping his golden war mech, Myrmidon, dormant. When elite bullies attack Diana, her demigod blood awakens, exposing her to the Persian warlord Zarek. The academy protects her attackers. The Four Houses kidnap her. Achilles breaks his vow and unleashes the machine that once terrorized an empire. Traitors, monsters, and entire armies stand between him and