there is no key.

MG: Sebastian Moran is the sort of baddie in the original story of The Empty House and he’s Lord Moran in there, it’s just a tiny glancing reference really. We talked a lot about this, Doyle had it himself, Sebastian Moran is assuming quite big proportions in the world of Sherlock, but really he’s just Moriarty’s henchman, there’s not much more to it. Doyle, I think, had the same problem of him not being Moriarty, so rather than just have a villain at the stake of it, we just didn’t do it really. Like The Empty House original, the most important thing is getting them back together and the Doyle story is a very, very flimsy locked room mystery in which you just can’t wait for it to happen and in a sense it’s the same sort of thing happens really. It’s just a wonderful excuse to have a great time. (x)

We were made for each other, Sherlock.

this is just a notice that i won't be on here for a while

You let me in. You wanted me, partner. So you think you can use your little tricks to banish me again, like that? No. I do believe I’ve got you, bunk buddy. Got my finger wiggling around in your brainpan.