Benedict Cumberbatch
Benedict CumberbatchReuters

A random tweet from one of the co-creators of BBC's "Sherlock" has fans debating if the Christmas special of the series, which will air sometime later this year, will be based on Sir Arthur Conan Doyle's "The Adventure of the Red-Headed League."

Mark Gatiss, co-creator of "Sherlock," may have hinted the plot of the Christmas special episode with a recent tweet that read, "We Gingers must stick together...#Sherlock." Along with the tweet he added a picture of a window display that featured the name of Jabez Wilson, a pawnbroker.

As meticulous readers of Doyle's detective series would know, "The Adventure of the Red-Headed League" is a story that features a pawnbroker named Jabez Wilson.

Twitter soon erupted with a number of messages asking Gatiss to confirm the speculations. However, the co-creator has remained mum.

In the mean time, Benedict Cumberbatch and Martin Freeman, the actors who essay the roles of Holmes and Watson, are currently busy filming in Bristol, and the actors were mostly seen sporting Victorian clothing on the set.

Filming details of the show, which is full of intrigue and suspense, is being kept under wraps and all that was confirmed was that the cast and crew were filming the Christmas episode.

Guest star Natasha O'Keeffe was also spotted filming a very dramatic death scene, and she too was dressed in Victorian outfit. One particular scene had her placing a pistol into her mouth and pulling the trigger.

The upcoming season of the series is expected to be filled with surprises and co-creator Steven Moffat revealed last year that fans are sure to be shocked.

"Of course, it's far too early to say what's coming, but we're reasonably confident that the very next thing to happen to Sherlock and John, is the very last thing you'd expect," Moffat said, according to Daily Mail.

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