God of War II by Robert E. Vardeman
The second official tie-in novel to the hugely successful God of War series of video games, set in the rich and thrilling world of Greek mythology. In this sequel Kratos, the game's protagonist, is a great warrior who seeks revenge on the gods of Olympus after repeated betrayals. On his journey to Olympus, Kratos must battle great monsters of legend-and fight his own inner demons.