In the Cambridge University library, historian Claire Donovan finds an old diary with encrypted entries. She manages to find the key to the code, and she learns that the diary belonged to a female doctor, Anna Devlin, who treated the courtiers of the English king Charles II during the very period when a series of mysterious murders took place in London. The brutal killer, whose name remains unknown, carved incomprehensible symbols on the bodies of the victims. Claire gets the idea to decipher the diary and solve the mystery of long-forgotten crimes... For the first time in Russian! From the bestselling author of “The Rossetti Letter.”