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.
He has something that's a lot like the unicorns' lifespan magic, except instead of giving him "some lifespan" it gives him all of the lifespan. This Is Not a person who's going to die of old age. He also has a property that makes food that he meaningfully gives to someone tastier and a property that allows him to alter the colors of things and something that's like the implied other end of the magic on the plants but weaker.
Riya abandons her work on the unicorn and starts trying to isolate this person's lifespan property instead. It goes much quicker; she doesn't need to fuss with it nearly as much.
Taking parts of things is easier than taking whole things. There, now she has it. Without the pointy ears part.
This world has so many more magic things than hers, with so much more useful properties.
...She stares at the bird. Someone made that bird?
"Why did someone make that bird?" she asks Kanimir.
"I believe that bird is called a Lesser Phoenix. I wasn't aware they were artificial."
"The magic is... I don't know. Maybe magic just grows like that sometimes. But it looks made to me. And I don't know why anyone would make that bird."
On the other hand, fire resistance sounds useful... She pulls apart the reflection to see how much of that property she can take. It comes away much more nicely than the unicorns. Unicorns are tricky.
That they are.
"It's possible someone created them just to prove that they could, or because they thought birds that were on fire sounded pretty."
It's significantly less obvious than the other things, but there is also a bit of magic ensuring that the unicorns are extra-pretty--making sure their coats luster well, is one of the largest parts.
Oh, what a cute little bit of magic. And it's small enough and tidy enough that once she finds it she can just... scoop!
"That seems to be a common thread in our discourse on magic," Kanimir comments dryly. "Would you mind if I circumscribed an imprintation circle so that I can get a record of it, next time?"
"Okay," she says. "You can watch me try to figure out unicorns some more if you want. They're tricky."
He nods, circumscribes some area, and then begins peering intently at chunks of crystal.