User blog comment:Neowitch/676 - End of the Party/@comment-4374114-20120801145703/@comment-79.136.17.249-20120801170051

I don't think it was those two, wouldn't Chopper have noticed the paper being thrown then? I agree with Ayet that its probably Bepo or one of the HP in hiding, it fits with Law saying its time for a counter attack.