A soft, feminine chuckle from behind her caused her to stiffen. It was faintly familiar, that laugh. She'd heard it before, in another life. Another place. But... it was impossible. The figure moved around to her left, approaching the invisible barrier where the boys stood with varying expressions of fear and anger splashed across their faces. As the woman moved into view, Hermione felt an unfamiliar feeling pierce through her - shock. There was no way. Simply not a chance in hell.