That evening, Sirius Black and Harry had a conversation via the Floo network. Unfortunately, the Floo was being watched, and Sirius nearly got caught. This was before we'd been told about the Room of Requirement, and we discussed how to meet with our Defence group. Sirius" suggestions weren't too good---the Shrieking Shack's not easy to get to, particularly with a large crowd, none of them Animagi. However, I did find out that Mundungus Fletcher---he's a very bent wizard who happens to be in Dumbledore's camp, thanks to the Headmaster getting him out of some scrape---had been in the Hog's Head, dressed up as a witch.