While very young, Aarbron was kidnapped and enslaved by the Priests of the Beast Lord. He grew up on drugs made to destroy his own will and turn him into the Beast Messenger, a powerful creature serving Maletoth, The Beast Lord himself. He did his job, until one day he noticed a man about to be sacrificed in a ritual, his face triggering ancient memories. As the sacrificial knife descended into the man's body, Aarbron recognizes his father's face. As his father dies in the altar, memories of his childhood and tormented past at the hands of the Beast Lord emerged, and as feelings of hate over his captors took over him, he swore revenge and fled the temple, knowing the road to avenge his father and redemption would be hard.
Description from MobyGames