5/10 The sleuth's visitor is asked to copy out the 'Encyclopaedia Britannica'. Is it a hoax?
BBC Radio 4 Extra
10/10 The Baker Street sleuth's enemy Professor Moriarty pursues him across Europe.
5/5 Can a showdown between Craven's mother and lover halt pursuit of La Thu Huyen?
BBC Radio 4
BBC Radio 4 FM only
Saturday 1 September 2012