Southern Archives Linked to Nine Doors: Old Testament of Mountains and Seas

On the night when Zhang Haixia came back from the dead, the Southern Archives finally gathered a table of people who should have been dispersed. But the reunion has not yet warmed up, Zhang Qishan's secret letter has been delivered to the door: hundreds of people from the 401 unit have disappeared, and only an old envelope belonging to the Southern Archives is left at the scene. The undercurrent of Changsha's Nine Gates resurfaces, and an unsolved case buried by the years drags Zhang Haiqi, Zhang Hailou, Zhang Haixia and their two apprentices back into the situation. Whose name is hidden in the otherworldly building? Is Zhang Haixia's resurrection a return, or another sacrifice that has already been written? The old files are not sold, and old friends are reunited. The Southern Archives joins hands with Jiumen to embark on an Old Testament journey across mountains, seas, and life and death.