Invisibility is going to be very popular with monsters who want to go out in the world.
As far as scrolls are concerned: Xeroxing them doesn't work. Carbon paper does, even on gray paper where the runes are barely visible for intellectual property reasons, and tracing a xeroxed copy also works fine; a simple spell takes about five minutes to make a stack of four. The spells are available in French and Spanish. There isn't a huge selection to start. But it's something.
They give Angela an after-school job tracing them according to demand so they have more time to discover additional runes and work out additional spells, and they put up fliers in the Avalon advertising a mail-order service.
Bella gets a car. It's a beat-up station wagon, but it works.
Bella has a small business, a vehicle, and a long-term career plan.
She sets about making arrangements to skip the eleventh grade, and Darren follows suit.
The two of them are adorably attached to each other. There is a lot of kissing. Savannah teases them a lot and Bella messes with her and Darren blushes.
By the time summer vacation starts, they have a stabilized price point, sufficient regular buyers, enough repertoire, and a nest egg of money that permit them to rent a small storefront and hire a teenage griffin to sell scrolls in the Avalon. They are on their way out (Savannah accompanying for kicks, Bella driving) to seal the deal and drop off a batch of inventory. Bright and early.
They make scrolls, and then scrolls kept are on their persons at all times. Invisibility, a shield spell, simple healings, and luck spells. Darren's trying to figure out how to get that last one onto an object that can go on their persons, but hasn't managed it yet. He thinks he's closing in on managing it, though. Soon.
Now without new runes to give Bella, Savannah isn't subjected to nerdy teaching talk. She's subjected to nerdy magic talk, instead. "Do you think," says Darren consideringly, "that it's worth the extra trouble of using fur or hair or something just to avoid having to draw out like ten more runes to keep things from catching on fire for the luck spell? It's so flimsy, but I keep having trouble trying to get something made out of metal or the like to work."
Bella's gets to recite the incantation. From his spot on the ground Darren is looking better, though it's kind of hard to tell from where theyare. A second later, her pursuer is back and swooping in to punch Bella.
Hands go around his neck, he's interrupted and the spell fizzles, the world abruptly resuming normal non-quiet levels. It turns out that the imposter is also just as strong as Savannah. This is very bad for Darren's breathing abilities. As in, he will not be.
And if she's not, maybe fairy princess magic can heal even after the point where someone's technically dead enough to evict occupants.
Bella presses herself against Darren, hopefully comfortingly.
Who's up for round two?
Mrs. Adams. Mrs. Adams is up for round two. She demonstrates by picking up the demon with sharp, sharp claws, and throwing him - it? - at a tree. She does not pull her punches, not when demons are involved.
The demon might, though. It becomes readily apparent that demons don't bleed. Instead, they ooze a red light that sticks to things before fading away. Some of the gore without none of the mess, how convenient. Because trying to clean up after the English teacher's demon-centered rampage would take hours.
It is not a clean fight. But it is very very fast. Also very one sided. The scattered pieces that remain of the demon fade away after, leaving nothing but the teenagers and the bugbear.
Savannah, not being the snuggling type, retrieves an entire carton of ice cream from the freezer, plops onto a nearby couch, and then starts working her way through it. Nom. Nom nom. The best part about horrific trauma is the license to eat lots of ice cream after.
"It's... Hmmm. A really complicated giant math problem? Where I weigh things that I have and their uses and how important they are to me or my goals. Then I combine certain parts of it to get what something is worth to me both resource and emotional wise and then I file it into mental priorities. So I guess it's also like a spreadsheet? And a math problem?"
"Yeah, it's relative. I don't like having large numbers just to have large numbers, they're annoying to work with, so - fifty instead of fifty million. You are very much above average at a solid 37.4. I can break down why you have this number?"
"Well there's math and reasoning behind all of these numbers, but - seven point six for intelligence and general sense-making. A solid ten for aiming it in the right direction, as in, fixing the world. Three and a half because you are systematic about it and things in general. Six point eight because I am dating you and there are reasons for that and they are good ones. Six point five because you are a super magic fairy princess and that has proven to be very, very useful. Two because you do not go about the sorts of things that you want in an immoral way. Then the last is the token point I give every sentient being ever just for being alive."
"I would not be dating you if you were not moral," points out Darren. "It's not actually just because I am dating you, it's because you are the sort of person I would date, and am, in fact, dating. I'm kind of picky. The numbers are kind of memorized, I was approximating them a bit, in my head they're more fluid. Besides, yours are pretty easy, I think about you a lot. If you wanted me to spit out the numbers for say, Mike, I would need time to think because I don't think about him very much."