One of them has to die. But which?
Moriarty found his cell to be the perfect place to plan. And the fact that Sherlock was on the other side of the wall made it all the more fun. Yes, I've already begun to play with you, Sherlock. But I'm not done yet. NO, you still need to read the ending. If I can only figure out what-
Oh. Oh, was that a light bulb flashing? Moriarty mentally investigated what it revealed. A dead body on the pavement. Yes, he'd been planning on that. A group of people and the cries of torment. No surprise there. Now, to take a look at the faces...
Hm. That would be interesting. Moriarty calculated the sequence of events. If he timed it just right, his little game might even have a few additional moves.
Oh, yes, it was perfect. So deliciously perfect. He could almost taste the death already.
Moriarty laughed. "I hope you enjoy playing with fire, Sherlock," he whispered to the wall gleefully. "Because this is going to BURN."