It was with a heavy heart that Moriarty began disassembling Donald and carefully packing him into crates for his trip back to the museum. Donald looked most put out about it. But really there was nothing else to be done. Not unless they both wanted to incur the wrath of the thing from high atop the whatever.
Unfortunately for both of them it seemed that the thing's wrath was already on its way. Nemesis has many forms. She used to go about in Chariot pulled by Griffins and carry a measuring rod and a whip with which to rain down justice on miscreants. But at that moment Nemesis had hitched a ride on the back of a Hand Truck and was currently wearing a rather fetching overcoat. Or possibly an Aran sweater. Or both.
And right at that moment Retribution in the shape of John Watson was sweating his balls off. He never realised just how warm it got underneath everything. Especially when everything was also underneath a layer of woolly Jumper. This had not gone unnoticed by Sherlock, who was really hoping that at some point John was going to have to take his jumper off. And whilst the fate of the nation was at stake etc. Sherlock was sure it could last an extra fifteen or so minutes.
"John if you're hot we can stop so you can take your Jumper off. We don't want you passing out from heat exhaustion."
"Yes. You look very concerned. I'm not an idiot. You just want a quick peek at my belly button." John panted, looking slightly annoyed. But stopped anyway. And peeled off his sweaty jumper which also had his sweaty T-shirt stuck to it.
"I think you should stay like that John."
"I bet you do." He started to separate his damp clothing.
"You'll be so much cooler like that." Sherlock tried to look winningly at him but John was looking in the opposite direction. He could feel a strange warm breeze on his now cooling torso. A breeze that reminded him of...
"Sherlock. Move!" He dived across to Sherlock and rugby tackled him off of the truck and onto the filthy floor as a tube train rushed past them.
"This is supposed to be a disused line." Sherlock roared above the train as it clacked along the rails and into the darkness. The noise was swallowed into the black and Sherlock became very aware that John Watson was on top of him. "Well as you just saved my life John, I feel I should repay you."
"I think that's going to have to wait. That train wasn't using the electric rails. If it was we would have been fried. So I think that has something to do with our missing dinosaur. "John spoke through gritted teeth. "And I think I just broke my collar bone." And then John passed out leaving Sherlock alone in the gloom.