Inside Rein's wizard tower.
"I see." Rein appeared to be satisfied after listening to Greya's "story", but his eyes were suggesting otherwise.
He suspected that Angor might have played a part in Greya's successful challenge, but not… this.
An alchemy item created by an apprentice helped a truth-finder wizard discover a new spell? Anyone in their sane mind would regard this as a terrible joke.
In Rein's view, the various rumors and achievements revolving around Angor weren't worth his attention. Angor was an apprentice still too weak in terms of strength. Any "success" was brief and did not guarantee enough future value.
Rein did not use lie-detection methods on Greya just to show respect to this truth-finder wizard. But he was feeling bothered because he thought Greya was lying. He would have used violence if Greya weren't here as his guest.
Of course, Greya was sharp enough to notice Rein's true thoughts.