"Three things I always try to do," she said, taking her hand. "Penelope," she said, too quickly to let herself think about the lie- it wasn't that Kate struck her as untrustworthy or likely to be affiliated with the Death Eaters in the city, but she couldn't know whether she might drop any name she gave her. She would probably have been much more willing to give her real name if Snape hadn't enlisted her to help protect Martha. "I think I'll probably be spending rather a lot of time in here- you'll likely be sick of the sight of me in a few days."