Secrets of The Mind Masters is a high-level adventure for the post-apocalyptic role-playing game, Darwin's World. In Secrets of The Mind Masters the player characters venture to the distant "Arid City" and enter into the employ of the Clean trading house as "scouts". What begins as a simple expedition to the ruins soon turns into a life-threatening exploration of a long-forgotten complex beneath the streets, an underground facility that is directly tied to the Savants' mysterious abandonment of the city years ago...

Secrets of The Mind Masters is designed for higher-level characters with levels in advanced or even epic classes. The suggested starting level is 17th, and by the adventure's end the player characters should have acquired enough experience to advance to 18th.