On the one hand, magic exists.
On the other hand, ow.
On the first hand, perfect healing.
On the second hand, ow.
On the first hand, flight.
On the second hand, holy fucking ow that one's definitely the worst, yep, ow ow ow.
Well, she'll pretty much poke at it at least a little whenever she tries to conjure something, then. Meanwhile she can go on forcing her other factors more capacious. She can't do much on the volume or mass fronts in class, but her bag can contain longer-lasting more complex things. Have a fabric dust jacket with an absurdly high thread count, random textbook.
And when she gets back to her room that afternoon, how much time will it take to generate the sweater from her Perfect Concealing Outfit?
Awesome. And now she can go back to practicing telekinesis, too, that's harder to hide on the inside of a book bag. Write on this conjured pad of paper, conjured pen!
Conjuring more massive and voluminous items than she could get away with in class! Attempting to telekinese them! Doing a stupid dance of sheer glee in midair because she can fly!
And after another day or two of her revised schedule of classes-while-sneaking-practice-followed-b
Its function is not immediately obvious, but reveals itself after a bit more poking: it's a telepathic communicator. Sending only, no specialized receiving function. It's willing to send to anyone she knows well, as long as they're approximately nearby - in the same building, or just a ways down the street.
Okay.
Anna and Cass do not by any stretch of the imagination qualify as nearby, so she has to get out her phone and open the email app to inquire as to whether this is normal.
And then she puts her phone away and concentrates on her sister.
Heeeey I'm telepathic now! Possibly you are too, I don't know, Anna didn't say how much you had to use a rose to get it but you've had the blue on your wrist almost as long as I've been wearing the pink one around and anyway this is a thing!
Enh, it's the roses, maybe if you work hard and believe in yourself you can send your innermost thoughts without lossy lingual compression.