"I don't. That's part of the problem." Her lips curved up in a smile that would have been flirtatious in any other situation, and it was hard for a moment to remember that a few minutes ago she had been afraid of this man. He seemed so normal just now. Maybe she was being paranoid. He was probably only doing his job.
It occurred to her, suddenly, that she hadn't asked him what he did or if he was investigating something for the Ministry. Perhaps he was an Auror?
She reached out to shake his hand again. "It's my job," she said. "I'm sorry I wasn't able to be of more assistance to you." It was probably just routine. That had to be it.