The third Victorian crime novel to feature Inspector Ben Ross and his wife Lizzie. Late October 1867 a woman is found murdered in Green Park. Allegra Benedict was the beautiful Italian wife of an art dealer in Piccadilly. But what had she been doing in London that afternoon, and why had she been selling her brooch in the Burlington Arcade just hours before her death? As Ben begins his investigation, his wife Lizzie - with the help of their maid Bessie - looks into Allegra's private life and uncovers more than one reason why someone might want her dead...