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Sherlock S04E01 review: Leave 'The Six Thatchers' to the seasoned disaster experts-Entertainment News , Firstpost
Sherlockology on Twitter: "NEW #Sherlock promo shots from S4E1 The Six Thatchers - the Holmes brothers and the return of Lindsay Duncan as Lady Smallwood! https://t.co/Sc9V8zAHGA" / Twitter
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Sherlock Series 4: Episode 1 synopsis for The Six Thatchers teases 'madman on the loose' | London Evening Standard | Evening Standard
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