"Ah. But you have the pattern, I can show you the sequence for the wand movements as you make your way through. I'm going to assume you understand the fundamentals of ward breaking?" When Weasley nodded she continued, "I'll outline the net, and tell you that the third window on the South side of the -" she froze, a look of disquiet on her face as her throat worked to get the words, which seemed to have gotten stuck somewhere between her vocal chords and her lips, out. Draco watched, mildly fascinated, as she visibly recalibrated, shaking off what he had to assume was the Vow of Silence. "Third window, South side. Nearest to the kitchen. That's where you'll want to begin. It will take hours."