And since, despite the world's admitted tendency towards situations best left in the more dramatic varieties of literature, it wasn't literally a stereotypical gothic novel, Kanimir didn't expect anything in particular to happen. If nothing else, there were far more storms that happened to happen at night than there were potentially literature-worthy shenanigans. So it's completely reasonable for him to be curled up in his grand library, enjoying a book on magical theory.
"The analysis is a spell that examines magic and presents it in a form comprehensible to the human mind. It gives one a spatial awareness of the structure and type of magic, although what those mean is something that must be learned. It is a focused spell with a human or other sapient being as the target which confers on them the sensory perception of magic which the spell provides. I cast it with myself as the target. Separately, I could cast it with you as the target."
"Does it detach when you stop using it? Or does it stay attached forever after you cast it on someone?"
He says several of the same words as before, and brushes his thumb across her forehead.
The effect is immediate.
The various magic she had already been able to perceive was slightly more detailed to this way of perceiving it, and other magic--old stuff, inactive stuff--became apparent as well.
"Oh, that's very odd," she says. "I guess you already said you have to learn what everything means, but... that's very odd." And she closes her eyes and stands very still for a moment.
"It isn't really attached at all," she says, opening her eyes again, "it's just sort of... hanging on."
"Attached, or just part of things without even being separate enough to attach."
"Mm. Most spells that are applied to persons here either wear off after a set amount of time, or have a method for ending them as an integral part of the spell itself."
"Most spells that you could cast on someone aren't things that one would prefer to be stuck with forever when the alternative is readily available."
"Mm." He continues to study the quartz. "Is this 'selfspace' inherently magical, so far as you know, or merely a substrate for magic?"
"I don't know," he says absently. "It might have been apparent for some reason that I would have been aware of. Can you--do something with it, go into it, while I circumscribe the area? If it were possible to examine more of your world's magic than just this," he gestures to the area where the portal was with the quartz, "that could be immensely helpful."