The fae, of course, has no idea who Elizabeth is. It can, however judge two things -- one, she's pretty, and two she's quite young.

It can bluff its way through, if it needs to. What's the good of being a fae if you can't use a little glamour to get through?

"Hello!" It says, and greets her with a bright smile. "I didn't expect to see you here!"

It didn't. It doesn't know it's where Lancelot and Elizabeth met, doesn't even know her name for that matter.