[ Sasuke's perfectly familiar with the phrase 'knows just enough to be dangerous' but apparently has little respect for the wisdom and caution it actually carries with it. It's not been long now since he's been introduced to the Underground proper, unaware of the existence of the supernatural until only very recently, and his response to that has been his own private series of investigations into whys and hows.
Which is exactly why he finds himself in this particular district so late at night, playing the part of a casual observer in a pub for some time in order to gather information for himself or potentially to pass it along to other interested parties at Hillingdon, before leaving even later and starting the journey home on his own. He stops at his first sense of being watched, turning on his heel to catch a glimpse of a figure just past the streetlight. ]
B, I told you I'd be here
Which is exactly why he finds himself in this particular district so late at night, playing the part of a casual observer in a pub for some time in order to gather information for himself or potentially to pass it along to other interested parties at Hillingdon, before leaving even later and starting the journey home on his own. He stops at his first sense of being watched, turning on his heel to catch a glimpse of a figure just past the streetlight. ]
... What do you want?