Outside the walls of Xuchang City ran a river, its currents raging, deepening to an inky black near the precipice where the water ran over one's head.

In the height of summer, when someone dared to plunge into the river for a bath, a sudden, agonizing pain would strike—as if cleaved by axe or blade—and the corpse would float to the surface, severed cleanly at the waist.

Subsequently, several more people entered the water, only to meet the exact same fate. The common folk were gripped by terror and profound bewilderment.

When the County Magistrate heard the reports, he dispatched men to dam the upper reaches and drain the riverbed. At the base of the cliff, in the river channel, they uncovered a deep cavern. Within it sat an iron wheel, spinning rapidly, its surface bristling with sharp knives that shone like frost.

After removing the wheel and venturing further into the cave, they discovered a stone stele. The surface was dense with inscriptions, all rendered in Eastern Han seal script. Upon closer inspection, they realized it marked the tomb of Cao Mengde.

The crowd rejoiced, smashing the coffin, casting aside the bones of Cao Cao, and greedily plundering every single burial artifact they could find.