Following a cryptic clue to an isolated house outside London, Holmes and his companions find themselves in a desperate race against time. But will the combined genius of the Holmes brothers be enough to unravel this international conspiracy before innocent lives are lost? 

A Noiser podcast production.

Narrated by Hugh Bonneville 

Written by Sir Arthur Conan Doyle

Produced by Katrina Hughes and Addison Nugent

Sound Design and Audio Editing by Josh Latham

Compositions: Dorry Macaulay and Oliver Baines

Mix & Mastering: Liam Cameron

Series Consultant: Dan Smith

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