Hermione didn't catch whatever Narcissa said in response because there was the loud creak of a door opening down the hall, causing her to jump back and flatten her skirt as her heart raced. She hurriedly scampered away from where she'd been eavesdropping to see Theo emerge into the corridor with a revolver in his hand. He nodded soldierly to her, but confused, Hermione turned over her shoulder to see Draco standing in the hall.