Santhenar is on its knees. The war with the alien lyrinx drags on, and humanity is losing it, but there is worse to come. The Aachim have invaded with an irresistible force: a fleet of battle constructs. Cursing humanity for the loss of Aachan and his own clan, the embittered Aachim leader, Vithis, demands half the world in reparation. The Council is in no position to resist. But even if they agree to his demands, can anything satisfy his thirst for vengeance?