"Greetings adventurer!" says the mage. "I am Mheng, master of these mountains." He titters to himself, and you begin to have misgivings about embarking upon this magic carpet ride...
Mheng had built a labyrinth into which he enjoyed throwing unfortunates and watching them struggle against the traps and monsters that dwelt therein. But you beat the odds and survived. You slew the gigantic reptilian Pit Fiend and clambered up its body to escape the labyrinth. You chased Mheng back to his lair, but he fled and locked the doors behind him...