Birthright

A young daemon finds himself carrying his father, the ancient founder of daemonkind, inside him. His father's aim is clear: slaughter without end, so that a new world can be shaped for darkness to reign over. Humans never see any of this. For ages, a hidden fraternity of immortals known as the Order of Azoth has quietly steered the world from the shadows. Now that the Order is splintering and coming apart, the young daemon may be its final chance to stop corruption from spreading and redirect what lies ahead. The Order, in turn, may be the only route he has to recover the humanity he has lost.