It can be revealed the secrets of his survival have already been filmed – as TV producers were worried the location might change its appearance before the next series starts shooting in full.

But the big question is: does Sherlockology know how its hero survived? “If we do we wouldn’t tell,” said Coomber. “And we don’t like to speculate as although the media was on fire with suggestions Steven and Mark are such great writers I am sure whatever they come up with will be amazingly clever. “But I do know this – the solution has already been filmed. The cast and crew did it very soon after the ending of the final episode, to ensure there were no continuity errors in how the location looked.”

Sherlock’s survival secret already filmed Article from Kent News