Introduction: In the first year of the Tian Shou era of the Wu Zhou dynasty, Kong Chengye, the Sima of Luzhou, died suddenly while searching for the Red Spider Lily, a miraculous elixir. Ghostly soldiers and demons wreaked havoc among the people. Di Renjie was ordered to investigate the case. Through meticulous investigation, he discovered that someone was using the guise of alchemy to silence witnesses and was training troops and forging armor in the Valley of the Underworld, plotting a rebellion. Di Renjie, with the help of General Yingyang, captured the leader of the rebels, thwarted the conspiracy, and uncovered the power struggle hidden beneath the legend of the Red Spider Lily…