If Selina did follow Sherlock, in fact, she'd have seen him disappear into the mist at the northern edge of Taxon for a few hours: alone and unequipped, which would seem unwise, but back from his little reconnaissance mission he seems more upbeat and charged-up than ever. There's a manic glint in his eyes, and although he may not be interested in talking about what he's been up to--not yet, anyway, not without some further data--there's clearly something brewing.

"Coffee," he tells the Extra waitress with a flick of his fingers. He's probably already had enough coffee. Then again, according to Sherlock, can one really ever have enough coffee? "How long have I been gone, Miss Kyle?"