Lucius uses the Dark Mark to summon the remaining Death Eaters for Hollans and a team of Aurors to round up; Snape assists with a few (butterbeer-spiker!)
Lucius has a bit of a conflict over his actions; Snape decides he'll get a bat, and leaves for his remaining classes after an aide interrupts
Alex watches Ariana and Charlie down on the Quidditch pitch (blushing prone!)
Ariana and Charlie further talk in their common room; she notices he is a werewolf, and he confirms it
Snape and Lupin discuss Halloween; they go to Diagon Alley so Snape can buy a wattle bat
Charlie goes to Lupin's office to talk about his recent difficulties, and gets a note to be excused from class when necessary
Charlie sees Snape about being excused from certain practicals, and draws Snape's attention to his being a werewolf
Charlie asks Hagrid for assistance with stress relief, then helps with the fwoopers