Cyrus Grimm, the living embodiment of death, has watched over our world for countless eons. He's seen everything there is to see; or at least he thought he had. But after a chance encounter with someone still among the living, and a weapon able to pierce the barrier between the living and the dead, he's not so sure. Faced with the truth of his own mortality he must make a choice. Break the ancient laws that govern his vigil, or watch from safety as the world he has watched over for so long, burns!