A large monster of unknown origin who dwelled for a time in the sewers under Two River. It is a large furry blue demon with three red eyes, and two very large horns. It seems to prefer complete darkness, and attacks Riou and his group after they walk into its lair while pursuing Chaco. While not known completely, Chaco may have been leading the group there so they would run into the monster. Perhaps the monster was Chaco's trump card in case the party caught up to him, or at least, he knew its favorite hiding spot.