Such a distance isn't a big deal for Qhaellizith, though she does find herself surprised at both the distance and the scale of the castle. And then she flies over it, and sees the shape of the castle. Really? Were humans really that vain that they'd build a castle in their own shape? (Nevermind that she wouldn't find it particularly vain if a dragon did the same.)

But it's an interesting enough castle for her to want to check it out! So she lands in the courtyard and then assumes human form to better explore it.