From publisher blurb:
The Manual of Mutants & Monsters Hellhound for Mutants & Masterminds Breathes Fire you’re your Game
This release of The Manual of Mutants & Monsters provides game stats on the Hellhound, an offshoot of humanity that lives among mankind, hidden. They are reborn after their initial violent "death" to become incapable of dying. Unless their head is removed from their shoulders, that is. Caught up in a battle among their own kind, they fight until only one remains.
This product includes game statistics for the Hellhound, an infernal, semi-intelligent beats that breathes and bites with flaming fury. Also included is the larger Hellhound Wardog — as big as a horse and bred for battle in Hell.