Here the editions split. The mainland lists give Cheng Yaojin Explores the Cave, from the novel Shuo Tang: at the Wagang rebels' victory feast a bottomless hole opened in the drill ground, the heroes drew lots to see who would go down, and Cheng Yaojin was lowered on a rope. Below he found stone gates, bridges and a hall where a dragon robe and jade belt lay on a table. He came up wearing them unharmed and was made the rebels' mock emperor, the World-Disturbing Demon King, for three years. One edition notes plainly that the story does not match the poem; another gives instead Cao Cao lost on a winding mountain path. The safer link is the image itself: a hard climb, gold won from sand, and a body kept safe on dangerous ground.