This is an alternative work that deeply combines "forensic criminal investigation" and "palace fighting conspiracy". The heroine's golden finger is not about prescribing strange poisons with no cure, but "poison intuition" - she only needs to come into contact with the poisoned person or the poison residue, and she can completely reproduce the synthesis path of the toxin, the poisoning process and the death experience of the poisoned person in her mind, just like someone who has experienced it. She used this ability to turn the violent chamber from a living hell into her private laboratory. Other concubines rose to power by virtue of their beauty and family power, but she was rewarded for solving the unresolved murder case in the palace for the emperor. Every step she takes to advance, she steps on the bones of a wronged soul, and all she has to do is let these bones speak. The most interesting thing is that the diary she wrote to solve the crime, "Transcripts of the Violent Chamber", unexpectedly became popular outside the palace and became the best-selling dark novel in the entire capital.