Possessed by a ghost who feeds on death, the undying assassin Ahjvar the Leopard has been captured by the Lady of Marakand, enslaved by necromancy to be captain of her Red Masks. His shield-bearer Ghu, a former slave with an uncanny ability to free the captive dead, follows Ahjvar into the war-torn lands of the Duina Catairna to release him, even if that means destroying what is left of Ahj's tormented soul. Deyandara, the last surviving heir of the Catairnan queen, rides into a land ravaged by disease and war, seeking the allies she abandoned months before, though they have no hope of standing against the army led by the invulnerable Red Masks of Marakand and the divine terror of the Lady.