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Christmas Gift Guide

Sherlock's back!

Deduce away

Dr. Watson, I presume?

Someone new in Sherlock's chair

Two heads are better than one

Read the fine print

Paging Molly Hooper...

Prop or new nemesis?

Welcome Holmes!

Give Sherlock a hand

Mycroft at the ready

The cast and crew of "Sherlock" season 4 have been keeping fans guessing with photos tweeted from the set. Sherlock Holmes (Benedict Cumberbatch) has returned to a new case. But are those new curtains in his flat at 221B Baker Street as well?

Caption by / Photo by Mark Gatiss/Twitter

How many items can you name on Sherlock Holmes' messy desk?

Caption by / Photo by Arwel Wyn Jones/Twitter

Not only has Sherlock Holmes returned, but it looks like Dr. John Watson (Martin Freeman) is back as well.

Caption by / Photo by Mark Gatiss/Twitter

New "Sherlock" episodes mean a new director. Say hello to Rachel Talalay sitting in Sherlock's favorite chair.

Caption by / Photo by Arwel Wyn Jones /Twitter

"Sherlock" Production Designer Arwel Wyn Jones gives a close-up of Holmes' favorite skull.

Caption by / Photo by Arwel Wyn Jones /Twitter

If only we could get a look inside this "Sherlock" season 4 script.

Caption by / Photo by Arwel Wyn Jones /Twitter

"Sherlock" wouldn't be the same without his smitten forensic pathologist, Molly Hooper, played by Louise Brealey, who tweeted this photo.

Caption by / Photo by Louise Brealey/Twitter

Vintage dolls are always kind of creepy. But this photo tweeted by "Sherlock" actress Louise Brealey makes them even more shiver-worthy.

Caption by / Photo by Louise Brealey/Twitter

No need to wait for Mrs. Hudson to let you inside Sherlock's flat. His door already appears to be open.

Caption by / Photo by Arwel Wyn Jones /Twitter

Some props from the "Sherlock" set are more cryptic than others. Here's hoping an automaton villain is in the works.

Caption by / Photo by Arwel Wyn Jones /Twitter

"Sherlock" co-creator and actor Mark Gatiss looks rather eager to get started shooting season 4.

Caption by / Photo by BBC
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