"Raha," reproaches Terali. "We know perfectly well it's magic."
"You know perfectly well it's technically magic, but you don't think it's exciting, not a bit," says Raha.
"Anyway. Probably time to send our visitors home until -" Kerah peers at the schedule. "Tomorrow morning."
The next day, Matilda is ready to be summoned at the appropriate time, with a notebook and pencil of her very own in case she has to take notes on things. Learning! Yay!
Raha has found Matilda a ingredients reference - this is a very thick book - and a thinner volume entitled Assorted Introductory Potion Recipes.
"There are millions and millions of things you could put in a potion, in the world," says Raha, "so instead of learning about every single one before you get to make everything, we're just going to cover all the ones mentioned in this recipe book." And she sets about doing exactly that. Every item mentioned in the book has an entry in the reference, with pictures of it in various states and color-coded lists of uses and interactions. (The books look handwritten.)
At one point she asks, "How were these books made?"
"That's interesting! Publishing in my world works differently, we don't use magic, but I'm not sure exactly how we do it instead," says Matilda.
"Well, I don't know how long it takes you, but I know we can make a lot of copies of a book in not very much time at all," says Matilda. "And the writing looks different, because it wasn't handwritten by a person."
"There are machines for it. I think they're called printing presses."
"They are! If Lesirra is this excited about them, maybe I can find a book about how they work and bring that," says Matilda.
She ponders this for about a tick, and then comes up with the right answer.
Matilda is very smart and has an excellent memory. She is going to learn all about the many ingredients.