So, quite possibly a dream if the return of his name and the manner of skepticism it was spoken in had anything to do with it. But Sherlock's state was beyond any careful consideration. Not enough to mask that the surname was, indeed, a fake.

Instead of respond to that directly, he glanced down at himself briefly before slipping his hands into his pockets casually.

"Impressive deducing. My turn. Judging by your clever ensemble, I don't think it's the first time one would be in your debt for such a request."

Sherlock looks down the road.

"I need a bank first. Shall we?"

The amount was nowhere near enough to live off of, but that was something he would worry about later. If this was all in his head, then that particular problem it was all irrelevant, wasn't it?