Holmes and Watson head down to Herefordshire… where an Antipodean murder mystery is playing out. 

But who has killed local landowner Charles McCarthy, two decades after he returned home from Australia with his family?  

And what light can the dead man’s final words – ‘A rat!’ – shine on the mystery?  

A Noiser podcast production. 

Narrated by Hugh Bonneville  

Written by Sir Arthur Conan Doyle 

Produced by Duncan Barrett 

Sound Design and Audio Editing by Tony Onuchukwu 

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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