Since ancient times, Goryeo has led the art of lockmaking. The Meridian Mandarin Duck Lock, the Opposing Plum Blossom Lock, and the Heaven-and-Earth Cosmic Lock are its three supreme achievements. Yet the ultimate secret of lockmaking is a skill lost to antiquity: the Hidden Dragon Gate.
The historical events in this book are fictionalized for the sake of the story and have no connection to reality. Please read with discretion.
