User blog comment:Sentomaru/Escaping the cage at punk hazard./@comment-4493594-20120805141445

I could imagine Monet pulling a similar thing as Robin did but... NAH! I don't think she has done anything yet to be even considered SH material. Totally looking forward to see her fight, though.

As to who threw the note, looking at the direction it can only be 1) the guys in the cage or 2) either Monet or Vergo. As far as I can see, only Law, Monet and Vergo can possibly know of Chopper's presence. So it must be one of those three.