Lith has just been reborn, that is he has just crawled out of a hole in the earth, returned from Hell! As he tries to grapple with the pains of existence, and the memories of his lost life, he finds he is now beholden to the Devil himself, who recruits him to join his army of the damned.

Lith must fight against his potent brothers one by one to survive this deep journey of the soul, which grows more complex with each twist and turn.

https://www.amazon.com/Dark-Exiles-Fictional-Endtime-Trilogy/dp/0595403913