Kirill is pretty sure the spell only takes ten minutes to cast, like a Sending, and the fact the wizard has been wandering and muttering for the last half an hour is a bad sign about the wizard's competence. It's Kirill's head, too, if the spell doesn't take; he is the one who advocated for spending half the treasury on the diamond dust now tracked across the priceless carpet by the wizard's pacing feet.
He considers whether it could possibly help to ask "is everything all right?" and decides it definitely could not.
And then the summoning sigils flare; the room goes cold, and the destined savior of Daggermark appears on the ground, folded in a crumpled heap.
The history books did not mention the destined hero arriving in a crumpled heap, but then maybe they would've elided that. "Sir?" says Kirill. "My lord? Are you all right?"
(The wizard has gone ahead and Teleported out. Two of the last three destined saviors of Daggermark were displeased to have been summoned and killed everyone in the room.)
Kirill wishes he'd thought to have a priest on hand - or, no, a potion. A priest would complicate matters, but he should've considered the possibility the hero would need healing. ...did the hero, in fact, need healing? He was rather slowly writhing on the rug, pressing his hands against it in different configurations, but he was not in fact bleeding, or bruised. A robe, though, Kirill should have thought to have a robe on hand.
"Sir," Kirill says carefully. "Can you hear me?"
The hero tugs himself into a sitting position, legs awkwardly splayed like a newborn foal, blinking. Dark hair, lean build - he could be Aldan, maybe. That would be encouraging, if so; Aldans only ever wanted titles and riches and men to bend and scrape over them, and Kirill could bend and scrape.