The British Museum in Bloomsbury is home to one of the Caryatids, a statue of a maiden that acted as one of the six columns in a temple which stood on the Acropolis in ancient Athens. Lord Elgin had brought her to London in the nineteenth century, and even though now she was over 2,300 years old, she was still rather beautiful - and desirable. Which is why Lord Francis Powerscourt finds himself summoned by the British Museum to attend a most urgent matter. The Caryatid has been stolen and an inferior copy left in her place. Powerscourt agrees to handle the case discreet.