With his wand poised at the ready, Snape peered at the striking yet frightful looking woman austerely. Though he appeared collected, he was inwardly filled with consternation - he could only guess that she was on side of the Dark Lord, though Snape had no recollection of ever seeing this woman before. If she could indeed even be called a woman. Her presence was like that of Bellatrix's: commanding, charismatic, terrifying.

"Reveal yourself," he said with cool but cautious command.