The Yongle Secret Cache

On a stormy night in Beijing, a Palace Museum expert delivers astonishing news: the Yongle Map of the Earth has resurfaced.

The text that records the ultimate secret of Zheng He’s fleet was hidden in a concealed compartment inside the caisson ceiling of the looted Zhihua Temple.

Chen Yifei is entrusted with the mission at a critical moment, and the clues point to “Buddha’s Shadow Island” in the Indian Ocean.

The treasure-hunting syndicate Black Sail catches wind of it, and a shop in Panjiayuan goes up in flames.

Flying Eagle sets out on the journey, with a Luoyang shovel to clear the way, an abacus to crack mechanisms, and a fishing boat serving as a warship.