Hmm..

[She thinks and thinks]

If.... If the journal this place give you is nearby you might be able to call out for them or look through to see if you recognzie their voices... otherwise, everyone's doors has their names on it and I believe there's a Castle Internet service? And a page that lists where everyone lives...

[She doesn't know for sure about that last one, since she hasn't tried using a computer yet but that's what she's heard]