One demon bound by hate, sowing the fate of the world in planting a deadly weapon. Always unseen, unheard, it is his actions that will bring about the enslavement and death of the humans. He waits in the dark to watch the slaughter, believing he is invincible.Another demon bound to the Night Caller, a being of shadow and power, who clings to humans with a sentiment unlike his brethren, and hopes to salvage them from the oncoming terror. Except Master and demon are separated after a vicious attack, and she must set out to rescue him; her chains preventing her any other direction. Amidst this journey she encounters Kyle, a human lost in a realm of nightmares that will soon worsen. Teaming up with the demon for survival, Kyle is swept into the quest to save the helpless world he comes from but feels no connection with. The darkness he carries within might become a spark of hope if he can face it, if he can confront the monsters that changed him from the boy to the mercenary. Keeping this secret from himself may cost Kyle more than his soul. It may cost him all of humanity.