Holmes: I think the murders were done by poison. This poison burned on this lamp. The poison and lamp I have here, now.
Watson: Cool but you're not going to light that deadly poison on that lamp here, right? Because that would be insane.
Holmes:
Watson:
Holmes:
Watson:
Holmes: You can leave
Watson, sighing, getting out of his chair: Let me at least open a window...
Holmes, already lighting the deadly poison: Bet.