Xhalax Sun is the mother of Aeryn Sun, with whom she had never formed a personal relationship due to Peacekeeper rules. She reentered her daughter's life as the leader of a Peacekeeper Retrieval Squad sent to recapture Talyn. Xhalax, a former spaceship pilot, had been forced to become an assassin as punishment for her crimes of having formed a romantic relationship with another Peacekeeper, intentionally chosing to have a child with him, and then establishing contact with that child (albeit briefly), all of which violated Peacekeeper rules.