The Black Nether novel series is the story of Seth: a man tormented by anguish, and an empty shell of a person. He had lived a lie for too long, forgetting who he was, and trying to live up to an image he could not maintain. As his life became an endless nightmare of loneliness, Seth forces open a portal, or rift, during a run in which he had lost all hope of ever being whole again.
Traversing the gap between realities by entering the Black Nether, the raw space of creation, Seth is sent into a fantastical world which was manifested through his own torment, driven by his shattered emotions. An alternate reality, Seth finds himself in a world torn apart by centuries of civil war. But a growing religion is extending its might across the land, lead by a self-proclaimed Prophet, Meledek, whose motives appear right and just on the surface.
Seth readily learns that the new religion and its Prophet is a terrible danger to the world, and directly to himself. With his new-found friend and companion, a brute of a man named Ottomandatius, they seek to expose Meledek for what he really is: a man bent on discovering how to open the doorway to the Black Nether and become exalted, which his religion dictates is preordained for the faithful by God.
Though Seth discovers his own strength and power in the strange universe by manipulating the Black Nether, his troubles are not limited to the Prophet trying to kill him: a shadow stalks him, awakened during his brief travel through the black nether, waiting for their inevitable meeting in which Seth must die.