(Editing with colors soon I'm typing this on a Kindle)

Jacob could sense the others' arrival before he could see them, heading the collective yammering of all their thoughts coalesce into a single maddening cacophony that threatened to drive him insane. An annoyed expression crossed his features as he tried to block them out.

 "Could you guys, I dunno, keep it down? I'm trying to think here."

 Jacob sighed, knowing he most likely sounded crazy to them. It was almost impossible that anyone, let alone someone in this room, knew anything about what that weird shop did to him. He didn't want to explain what he was talking about, how he could hear their indistinct thoughts, but he felt that he had to.

 "You guys might call me crazy, but I think that place, Grace's or Gertrude's or something, might have messed me up a little."

 He waited for someone else to chime in before he fully explained himself, just in case someone broached the subject before he did.