There's a few things Sarah takes from this; first that air magicks and shadowmelding are a thing and second that the tea is safe to drink. While he speaks, she focuses on that second and sips at her own tea as important point three comes to light.

At the announcement he's to be king, Sarah about spits said tea everywhere. A hand to her mouth is all that saves both of them.

"Y-you're gonna be king!?" With all that's been happening lately, she really shouldn't be surprised to hear something like this, but Sarah is caught way off guard.

"I mean, when you get the kingdom back. How... are you gonna do that? Exile doesn't sound good, and if there's a war going on then..." It's sad, in her opinion.