Regulus was torn, though his expression betrayed none of his unease. Of course he recognized her. He'd written a letter to his mother, after all. It wouldn't be hard for the Dark Lord to find out that he did know her, and Regulus wasn't sure he would survive that. If he admitted now, though, Granger wouldn't survive. The decision wasn't hard to make, though he did feel guilt wash over him. "I do, my Lord," he said, seeing Snape and the other students nod off to the side. Several appeared angry that Regulus had spoken up first, and would thus be rewarded.