The Coded Blue Envelope: A Sherlock Holmes and Lucy James Mystery by Anna Elliott
My rating: 4 of 5 stars

3rd November 1899. Zoe Rosario, mother to Lucy James is given a blue envelope for Sherlock Holmes by fellow orchestra member Mr Palazzi. His policeman brother had that day been murdered. How are the organisations of the Black Hand and the Sons of Ra involved, but other threats surround them all.
Another well-written Holmes mystery in this series with its cast of likeable characters.

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