Anubis by Wolfgang Hohlbein

After a fatal accident, a young man awakens in a surreal realm between life and death, stalked by a jackal-headed guardian who enforces the laws of the afterlife. Driven by love and guilt, he navigates shifting deserts and labyrinthine cities built from his memories, searching for a way to save the woman he cannot let go. As reality blurs with nightmare, he must confront the truth of his past and the cost of defying judgment to reclaim a second chance.