In the hinterland of Lop Nur, there are nine layers of seals hidden under the ruins of Loulan, which have been silent for 1,600 years. In AD 330, the last priest of the Black Sun drained a city and sealed some indescribable existence underground. Now that the seal is loose, five people who each have their own secrets are drawn by fate to gather here.
The criminal police captain Sali has an inexplicable familiarity with the ruins; his wife Zuri Huma can instinctively read the long-lost Qilu text; the forensic doctor Su Wanqing is burdened with an unspeakable mission; the soldier Ma Long is loyal but vaguely suspicious; and the man Han Zheng who defected from the Shahu organization.
When they stepped into the ruins, they discovered that there were no weapons or weapons here, only one thing - memory. Every time you go deeper, you have to hand over a piece of the past; every step forward, the waking time is shortened. The real danger is never the darkness underground, but the secrets hidden by the people around you, which surface one by one in desperate situations.
When trust becomes the scarcest supply, who can leave Lop Nur?
