The Great God Tao is a deity worshipped on Mongo, by the Lion Men and the people who serve Ming the Merciless. ("On the Planet Mongo") ("Chapter 102: The Tunnel of Terror") The leader of the religion is the High Priest. Tao's temple is a holy site, off limits to visitors. It is accessible only through the Tunnel of Terror, which is guarded by the sacred Fire dragon. ("Chapter 109: Fighting the Fire Dragon")