Beneath London's thick fog lurks a terror deeper than any crime.
When a string of bloody ritual murders rocks Whitechapel, Xia Luo, a medium falsely accused of being the killer, and Inspector Reynard, framed and disgraced, are forced into an alliance on the run. They soon discover that their enemy is no ordinary psychopath, but a millennia-old cult seeking to awaken a slumbering Old God with blood.
As the only “key” capable of “reading” the lingering traces at a death scene, Xia Luo is their best hope of solving the mystery, but he has also become a sacrifice coveted by every faction. Allies whose loyalties are impossible to discern, a hidden hand among the police leadership, and the mysterious organization known as the “Night Watch,” which seeks to preserve a balance of terror... All of them covet his soul.
In this desperate city shrouded in fog, the two must evade a deadly pursuit and uncover the “Old God’s script,” a revelation powerful enough to overturn reality itself, before the final ritual is complete. Yet with every step closer to the truth, Xia Luo realizes with growing dread that he himself may be the most crucial, and most dangerous, part of the script...
