Eyes wide, Tilda takes a closer, appraising, look at Mira and then reads the letter again, more carefully.
She certainly doesn't look like she's from Suinel.
And assuming she doesn't just have delusions, then she's from somewhere that isn't Suinel, which means a lot of historians or Research Mages or both are going to be interested - as well as the Queen herself. In fact, the Queen is probably exactly the person to ask to figure out whether this Mira is from another universe or the Days of Wonder or where... except Tilda isn't exactly sure even the Queen would be able to answer that...
... but that can be answered later.
"Well," she breathes, not really trying to hide her shock. "Randall's definitely sent you to the right place. We're very happy to have you. We'll have a lot of questions - but to start with, he says you're eager to invent new things? What do you need to start with that - and also, I'm assuming he didn't think to pay for a real bed on the spellwagon; would you like some rooms and time to rest?"