In Search of the Yongle Encyclopedia

Chen Fei finds a clue to the second volume of the Yongle Encyclopedia in Dunhuang, only to be surrounded on all sides by international art traffickers.

At the critical moment, Lin Xue, a mysterious female archaeologist, drops from the sky. Armed with a fragment of an ancient text, she joins forces with him to break through the encirclement.

The two flee to a black-market auction in Istanbul, where they set their sights on a star chart from the Yongle treasure ship, said to record the coordinates of overseas treasure.

When the model of the treasure ship is put up for auction, it triggers a hidden-room mechanism. But the concealed map is snatched by mercenaries who suddenly appear.