Part two of three.
The plot thickens, as the young Sherlock finally cracks the coded message - but it’s too late for poor Mr Trevor.
And a note from beyond the grave answers a number of outstanding questions… even as it raises others.
A Noiser podcast production.
Narrated by Hugh Bonneville
Written by Sir Arthur Conan Doyle
Produced by Duncan Barrett
Sound Design and Audio Editing by Mirianna Pitman Latham
Sound Supervisor: Tom Pink
Compositions: Dorry Macaulay and Oliver Baines
Mix & Mastering: Josh Latham
Series Consultant: Dan Smith
Executive Producer: Katrina Hughes
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