The Hounds of Hecate are a tribe of males who serve the all-female Daughters of Hecate. The Vipers are feared warriors, mostly feared for their uncommonly excellent health and large numbers. The Vipers often travel with Daughters of Hecate, protecting them from outsiders or foolish tribes who choose to stand up to Hecate. The "Iron Lines" resist the Daughters of Hecate and have remained largely immune to the plagues that haunt other tribes who go against Hecate’s wishes. However, the Vipers never pass up an opportunity to butcher any Iron Lines they discover.