"Our fathers can't stand each other, and it'd be a bit much to not be able to stand them but pointless glaring strikes a nice middle ground."

"...why bother though?"

"I don't do it when there's anything interesting around. When we're stuck in class, mostly."

"I guess that means it's not a huge waste of time but it doesn't explain why you do it. I could pointlessly glare at people when I was bored too but why would I?"

"Because it's emotionally satisfying?"

"Is it really? Okay."

"Yeah, really."

"The only one I know to speak of is Zachariah and he's not bad."

"None of them are bad, that I know of. Timothy likes them all but then Timothy'd probably get along with dementors. I am allowed to have very high standards if I'd like."

"Should I be flattered?"

"Well, I'd never met anyone that I thought was really excellent who wasn't one of my brothers, before you."

Miranda giggles. "Thanks!"

He shrugs. "Our next bunch of experiments probably won't involve so much running around. I'll tell you about them."

"Do you know what they are yet or is it just that most experiments don't involve lots of running around?"

"I want to do spells with non-Latin-derived incantations!"

"Ooh! I don't actually know any, you'd think I would but Mum's lived in England all her life..."

"There are some books in the library, we can find some."

"Cool. What's the experimentiness of it besides just learning new spells?"

"I'm hoping there'll be some spells that are the same as or very similar to ones we know, or ones with the same wand movement but different results, and with enough of them maybe we can notice some patterns in what the incantation actually does for the spell -"

"Oooh, this sounds fun."

"Yeah!!"

So Miranda accompanies him and Karen to the library when they go looking for non-Latin spells. There are a couple of Greek ones, and a reference to the Killing Curse being Aramaic, and a book written in really terrible handwriting about Chinese incantations "which regrettably it is beyond my ability to transcribe such that anyone might hope to pronounce them correctly" (Karen eventually deciphers).

Frustrating. Maybe there are books written in Greek? Maybe there are books about the magic of the native population of the Americas?

What little they can find suggests that the native population of the Americas is heavily potion- and ritual-magic-skewed in their traditional practice but they do have some incantations which the author has declined to commit to paper lest this propagate a savage and backward discipline at the expense of rescuing magical Indian children from their culture.

"Eugh."

"That's a thing?"