There was only ever going to be one place this would end. There, deep down in that dreadful cauldron of swirling water and seething foam. You will have read these words before, even if you don't recognise them. Reichenbach is not a place, it's a fall. We should have recognised the Scottish writer with the silly moustache.

The paths of Sherlock Holmes and James Moriarty don't cross often. After all, the Crime of the Century doesn't commit itself. And it wouldn't be the Crime of the Century if it wasn't stealing the Crown Jewels. Sherlock knows this, of course, but then uncommitted crimes don't need solving.

John and Scarlett are desperate. After finding their cases written down in the Strand Magazine from over a hundred years ago, Sherlock hasn't been able to change the course of a single one. Everything is happening exactly as it is written down, and Sherlock seems to follow the path laid out for him willingly. It is up to the two people closest to him to stop him.

With Scarlett arrested for the theft of a Crown Jewel and John finding himself possessed by a Scottish voice telling him to kill Sherlock Holmes, it becomes evident that there is another presence besides Moriarty who wants to bring their adventures to a conclusion. Can they get to the centre of Moriarty's web before they are fully turned into fiction? And what is Mrs Hudson doing spinning threads in the corner?