When a letter from a foreign ruler disappears from the European Secretary’s dispatch box, the Prime Minister himself turns to Holmes in desperation. The contents of the letter are so explosive that it could plunge Europe into an all-out war should it be made public. But something about this diplomatic crisis is not what it seems. Following a trail that leads from the corridors of power to the blood-stained floor of a murdered spy’s house, Holmes must unravel a web of political intrigue and deception before catastrophe strikes. 

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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