Vicky's plans weren't nearly so responsible when she ducked into the empty classroom. She had actually been looking for the loo, but the way things kept moving and shifting here at Hogwarts, she'd came through the wrong door.
Not quite as quick thinking or observant as her Ravenclaw companion, Vicky waved a little hello to the girl she thought she recognized from some of her classes. "Oooops, wrong door." She shrugged, turning to grab the handle, intending to go in search of the right room.
When she twisted the knob, though, nothing happened. It was locked. "What the hell?" She gave it a kick, wincing because that hurt, before thinking to pull out her wand.