The Champion of Chaos has overrun the continent of Halcyon, and humanity's future hangs precariously. As the remnant of a once-thriving civilization struggles for survival, the people of Halcyon resign themselves to the possibility that by the time the Savior of Order arrives, there may be nothing left to save. Meanwhile, a broken and beaten Duncan Milius wakes up to a shattered world. The people desperately look to him for leadership even as he battles his own inner crisis. Unsure of who he is and terrified of what he might become, he must face the truth that the choices he makes will come with great personal costs. During the final days of a world beyond time and imagination, the fate of Halcyon will be decided by unexpected alliances and impossible sacrifices. "Endgame" is the final book in the "Harbinger's End" cycle.