Cthulhu + no system + desperate survival + single female protagonist
When Lin Mo was cleaning up the underground warehouse of the museum, he accidentally triggered the mechanism and discovered a bronze key engraved with twisted patterns and half a blood-stained parchment fragment.
The rituals depicted in the fragments match surprisingly well with the remains of ancient altars found in the city's sewer system.
At the same time, the police received a series of bizarre death cases. The characteristics of the deceased were consistent with the description of the "sacrifice" recorded in the fragments, and the third phalanx of the left hand was engraved with a six-pointed star.
The family emblem on Lin Mo's cufflinks was a six-pointed star, which dragged him directly into the whirlpool.
During the investigation, he encountered "Nightingale", a woman in black. She is elusive and seems to know the inside story, but never reveals her purpose.
When forced to cooperate in investigating a suspected sect stronghold, Lin Mo found blood stains on the bottom of the cup she handed him, deepening his suspicion. However, the clues provided by the "Nightingale" pulled him back from the edge of the fatal trap time and time again, and pointed to a forgotten "ancient city" deep underground in London, with a style very different from any known civilization - the Shadow of R'lyeh.
Later, I found that I had become the most important sacrifice. In order to survive, I tried my best...
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