They descend steps to an underground river with large stone statues at intervals of death gods from various cultures, like Yen-wang-yeh, Emma-hoo, Gilgamesh, Osiris and others. They climb a steep flight of steps and emerge in an antechamber with four statues holding four canopic jars in Chinese style and four doors. The first door leads to the tomb, where they discover that Tou Wan's Hairpin, which had a piece of the Stone, is indeed missing. The next door leads to a room containing the Laughing Prince's medical research. He was using the Stone to chart the patterns of ch'i and shih. The third door leads to a series of polished chutes that exit in the underground river. Lio Pau is not there and they find tassels from his robe leading up a flight of stairs to a side passage. Moon Boy produces the illusion that they have entered and the roof of the tunnel collapses.