Volume 8: Gathering of Wind and Clouds, Chapter 14: Shock_2

And Komer's suspicion did not come from his understanding of magic; it stemmed from his perspective on human nature. The Mysterious Magician, since her arrival in the Caucasus a few days ago, had uttered no more than ten sentences. She usually stayed in her room without taking a single step outside, and even when questioned by Mihailovich, she merely dismissed him with a "sorry, I can't say" response. Had it not been for that letter convincing Mihailovich to accept her, it is doubtful that anyone else would have welcomed her.

However, for someone so sparing with her words to go out of her way to explain a spell to everyone, trying to make them believe the origin of her magic was normal—it was indeed quite an overreaction.