Then she can happily spend a long time reading (and get hungry and retreat to her room to eat a snack and then go back to reading).

After an...amount of time...Kanimir finds her again. (It's probably been at least a few days, maybe a week.) "I think I might have something--an avenue of research, not a potential spell," he clarifies. "But I think it would help to see you doing your kind of magic again, under slightly different circumstances." He holds out a book. It's magicked to tell him when it's been read, and how much and what specifically. "Can you read this only in your selfspace?"

Riya nods. "Yes, I can do that."

Her inner self takes the reflection of the book from Kanimir's reflected hand and opens it.

After he's recorded what he wants to record, he examines the crystals closely, frowning. "The fact that you were reading the book didn't register at all," he reports.

"Is that bad?" she wonders.

"It's information."

"Okay."

"Your kind of magic works in a fundamentally different way from mine, so far as I can tell, but after extended poking and prodding I've been able to compare its transport function to some magic with similar results from here. I...think that if I could get an appropriate spell drawn up, I could use some of the information entangled with the door's residue to target where you came from."

"That sounds like good news..."

"And, in case we needed it--we have confirmation that you are from very, very far away. If I'm making any sense of what I'm detangling, you're from farther away than Fairyland, along the same axis."

"Well, I don't know where Fairyland is. Is it far?"

"Fairyland is a separate dimension."

"Oh."

"Luckily I already have quartz impressions of fey gates."

"And that will help?"

"It has a better chance of helping than anything else that readily comes to mind."

Nod nod.

"How have you been keeping thus far?"

"I really like your library."

"I've had a very long time to compile and curate it."

"It's a good library."

"Thank you."

Smile.

"Perhaps it would be useful to show you some relevantly magical things, and see what your method of detection gets out of them."

Nod, nod. "Yes, that sounds like a good idea."