PREVIOUS BOOK IN SERIES: A SCANDAL IN SCARLET, ISBN 9781683317906. Just in time for Sherlock Holmes's 166th birthday, the fifth installment in Vicki Delany's 'Sherlock Holmes Bookshop Mystery' series follows Gemma Doyle as she and her friends travel to London for a Sherlock Holmes convention. But when Gemm'a father is accused of murdering his brother-in-law, Gemma and her friends must plunge into the lowest and vilest alleys of London to save her father from prison. Delany lives in Picton, ON.