Two exciting snaps originating from Sherlock producer Sue Vertue's Twitter account arrived online today.

The first? Here it is: a pic of the script for Sherlock's forthcoming 2015 Special episode, accompanied by this message "This is what we've been doing today! Later on a pic of Sherlock and John as they'll appear in the Special #221back":



The second? The promised picture of Sherlock and John "as they'll appear in the Special", along with the hashtags: #221back #Sherlock #notkidding



So there we have it. Is the Special a period piece? Are the pair going back to Conan Doyle's era for a bold, one-off historical adventure? Or have the detective duo simply developed an interest in Cosplay? Either way, Martin Freeman (who famously disliked his The Empty Hearse moustache), should be thrilled with that soup-strainer...

@suevertue

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