The most recent (non-fiction) publication concerning this intriguing cold case is "Life and Death in Old Peking. The Murder of Pamela Werner".
Who was Pamela Werner?
Pamela Werner was the 19 year-old adopted daughter of retired British consul ETC Werner. Pamela was on term holiday in January 1937 when she failed to return from an evening at a Peking skating rink, only a cycle ride away from her home. Her badly mutilated body was discovered near the old city wall the next morning.
Despite great media attention and months of joint effort by the Chinese and British police, no one was ever charged with the crime. The offender and motive behind the murder remained a mystery. Subsequently, over the next several years, the victim's elderly father conducted his own investigation into the crime, writing many times to the Foreign Office with his findings.