Sword of Mycenae — Richard Dawes

While passing through the Caucasus Mountains, Valka the Wolf Slayer encounters the hero, Heracles of Thebes. He battles Heracles several times, each fight resulting in a draw. After they free Prometheus from the chains binding him to a mountain peak, the three men decide to continue on together. Valka is with Heracles when he battles the Stymphalian Birds, wrestles the giant, Antaios, fights the man-killing Amazons, steals the Golden Apples of the Hesperides, and descends with him to the Underworld to bring back the demon-dog, Cerberus.