[Well - that's a familiar trace. Moriarty did have a terrible habit of appearing in unusual places. Carefully, even more careful than usual he follows the signs - stopping every once in a while to search his surroundings, walking in a manner that would seem strange to a casual observer, but in reality to avoid lurking danger.

He can't help but feel like he's being lured, but that is the nature of a detective to follow even the obvious trap]