Felipe
V.I.P. Member
I had heard there was rumor of an area where guest wands would trigger effects, could that be what you are referring to? That seems like it would be very important to both WB and UC but I am not sure how it relates to your clues. Edit: for some reason I thought I heard the guest triggered effect area would be in Knockturn Alley but maybe I am mistaken on that.
The rumor is for interactivity all throughout Diagon Alley and maybe even all of Hogsmeade, as well :look: :shrug: