[ it was a purple dog. (no it was pink.) ]

That's right. Apparently it is the location that is under a different Composer's responsibility, and she did not necessarily enjoy the fact that Nightingale had placed us there for safekeeping. She agreed that she would help us with our problems, and said she would leave something in the past for us to collect in the future. Which is what the hangman's note was about. It was some sort of feather? No, I have no idea what it does at all.