Vlad was almost positive she didn't know the extent of his ability, and he wasn't about to mention the fact that he could recognize people by scent. It was like that of an animal but slightly different - he could also recognize blood type, although it went a little deeper than that. Regardless, he was confident that he would be able to tell the difference between Vaughn and anyone else. "She may be able to feign mannerisms at first, but I think her patience would run out fairly quickly. All we need to do is be careful."
He knew that he would probably do much worse than that, but he managed a faint smile. "I will try to do as little as possible without you, then."