It's a little surprising; normally she is permitted to enter random forests of her own will. But not that much.
She starts walking, looking for whatever inane plot she will be required to participate in/thwart this time.
Eventually she sees a cottage. She makes for that--random houses in the woods are prime weird shit locales.
She knocks on the door. "Excuse me! I don't know what's going on here but I'd rather get it over with sooner rather than later so I can go home!"
As soon as the door is closed, the fairy says, "And you're a mortal and you need to go home as soon as possible, ideally before he's back. I wouldn't have invited you in but I'm under orders but I'm allowed to speak freely in the house with only a couple more specific restrictions. I don't have to chase you if you turn around and go back the way you came; can you? Was it a stable gate?"
"I just appeared here. I'd love to go home, but this kind of thing happens to me a lot; a weird thing happens to me and I have to deal with it. I can defeat it, even if it would narratively inappropriate, but running from it never works. So your master is evil, I'm guessing? And you're not his voluntary minion. So I have to defeat him and free you, I'm guessing."
"Thank you," says Promise, suddenly relaxing all over. "I'm going to pack a few things, burn this place to the ground, find someplace relatively sheltered to make you a gate, and fly away. Just a minute." She ducks into a side room of the house and comes out soon after with a bag.
"He wasn't as bad as my last master. I had leftover orders when Yellow bought me or I would have been long gone." Promise leads Little Bird out of the house. She looks over her shoulder and the entire structure turns into smoldering slag, collapsing on itself slowly.
"I mean, yes, sure, I'm not going to go charging off half-cocked, but I've dealt with things that smart people don't tangle with before. Not voluntarily, usually, but I did and came out of it alright. If there's someone consistently doing bad things to people I'm not going to give up without knowing anything about the situation."
When Daphne needs to slow down, they slow down, and Promise finds a large shrub. "Can you hide in there? For a few days, if necessary - I can leave you safe water, I can feed you a little of what I have before I go, that's safe since I'm already your vassal."
...Of course, she picked the location based on believing that she was going to be a few days before she got there, which means that she now has to find a way to get her car back to campus from New Jersey. Oh well, better than lying in a shrub for days.
"Some of Thorn's vassals found me. I couldn't outfly them for long, but if I can hide here for a few weeks - even a few days - they didn't see me come through here, shouldn't be able to find the gate, if they do they won't be able to use sorcery so as long as I can stay far enough away and nobody tells them their names - if I can just stay long enough that they lose track of me I can start over somewhere farther away."
"I can hide somewhere. Or put out my eardrums - well, you could, one of Thorn's people ordered me not to do it myself before I got away, but I don't have to stop you. I can fix them when I get home. I don't want to envassal anyone. I just need somewhere to hide and you can feed me without making anything worse."
"Um, you can hide out in my room for the duration if you want. No one but me and my roommate will come in without an invitation and she'll be fine not calling me by name and I can refrain from calling her by name and that sounds like more fun than putting out your own eardrums. Also, if you've acquired orders you don't want since last we met, I rescind them."
"My name's not Frederick."
"I know. This kind of fairy gets some kind of dominance over you if they learn your true name."
"Oookay, then. I don't think we've actually been introduced, how did you know my name wasn't Frederick?"
"The embarrassing birthday display your friends put up in the dining hall last month."
"Oh."
"Weird. Maybe there are some fairies who moved to the mortal world permanently and... lost it? Maybe it takes a long time to stop working unlike sorcery but still does... or there are breeders here and if they're born here they have mortal name properties and their ancestors left them...?"
"...I'm not currently affiliated with a court, I started in a forest that's usually autumn, and anyone with even a medium-sized court who called herself something with 'Queen' in it would get some attention from the actual Queen if they did it in Fairyland, although it could be safe enough here."
"...I have no explanation. In Fairyland, there is a Queen, she knows all fairies' names but maintains a finite actual court for reasons of practicality, and other fairies collect names or feed one another and form smaller courts elsewhere with whoever the Queen doesn't want. There's no... seasonal division, and the names thing works with every kind of fairy."
"There are doorways--mostly in hilled areas, but not exclusively--that open and close based on things like the position of the stars and the turn of the seasons and the pull of the tides. I have heard that truly powerful fey mages can open new ones, and that all the doorways that exist were once created in this manner."
"That was my thought too. I think Jawbreaker knows a little, he's not anywhere near as good as--ooh I'm going to have to come up with something to call him, if I try to keep saying 'Overbite's Brother' I'm going to slip--anyway he's not as good, he pretty much couldn't be, but it's probably enough to tell if they're very different or not."
"That would be...pretty insulting actually. Oh, Overbite and her brother are vampires. 'Overbite' is a reference to her fangs, but vampires only have top fangs and not also bottom ones like some animals do, so calling him 'Underbite' would imply that his fangs were so small even his humanish lower canines were larger than his fangs."
"Right." She sets the notebook aside. "My magic is called sorcery. It involves knowing my environment and the thing I'm trying to do magic to very well, as well as an invisible environmental factor called harmonics that have to be found through trial and error. It can do things like lights or turning people invisible or growing plants faster."
"Demons are mostly bad news, especially in the higher orders, but the lower ranked ones are sometimes okay. There are a lot of kinds of demon. No one is quite sure if angels exist, so I couldn't tell you what they're like if they are. Ghosts are noncorporeal people who used to be mortals until something should have killed them but separated soul from body instead."
"The sex demons need sex energy to...well, not to live, exactly, but it's food to them. For them, sleeping with someone has about the same emotional meaning that...wait, food envassals you. Well, it has the emotional meaning that having someone make you a sandwich has for mortals. A really good sandwich, if it's really good sex."
"And at that point we're back to you can let me know if someone propositions you so I can tell them it's not okay. They're not going to mojo you off the street, anyway--in all the cases I've heard of it happening, the victim was lured into a position where no one else would notice the incubus or succubus being supernaturally sexy."
"Thaaat seems like a bad idea for a number of reasons. Their magic is a bloodline thing--half fey can do it sometimes, but plain humans just can't, and I'm not confident you count. Also, we would have to find a fairy to teach it to you, and most of them are, again, snobs. We'd have to find a way to make it worth their while, which would be...difficult. And I can't be sure that one wouldn't be offended by the fact that your kind of fairy uses the same word as them when you're so different," Overbite says, wincing.
When he said gestures and incantations with some ritual, he was perhaps being somewhat misleading. One starts with ritual, and builds connections between steps of the ritual and gestures or incantations or other things, slowly replacing them until a ritual that takes three hours to perform is replaced by a word and a wave. This is why two magicians may take different actions to get the same result--they started from the same ritual but abridged it differently.
If you know enough about ritual theory, you can develop new spells. Unfortunately Jawbreaker does not know enough about ritual theory and this will have to wait until Overbite's brother can teach her. But he can familiarize her with several rituals. Once she's performed the rituals and gotten them down firmly he can help her start abridging them, starting with steps that occur in a lot of different rituals.
...Actions like that introduce a risk that she might do magic accidentally, but if they're careful and creative she can have something like breathing to a certain rhythm instead of speaking, and blinking in a pattern. Does she anticipate relative freedom of facial expression while under heavy orders?
"...Huh. I never noticed you can't roll your tongue without opening your mouth. You can clench your jaw, but if you were in the habit of doing it otherwise you'd need to break it; if a gesture means magic to you then it will do magic whenever you do it. That's one reason most magicians prefer grandiose gestures and nonsense words; you're unlikely to do those without meaning to. Your situation is different, of course, but that does mean you'll need to be more careful."
The silence ward is incredibly complicated. If you do it just as a ritual it can take up to a week to do. But you can abridge things indefinitely if you work at it enough--these steps are all abridged as gestures and these gesture sequences are abridged as words and these word sequences are abridged as another gesture. Most magicians are limited by their ability to create and remember distinct abridgements. If she works very very hard and is good at remembering things, she could eventually cast a silence ward by clenching her jaw.
"Jacenty" proves to be a somewhat better teacher than he had predicted. He gives her advice on memorization techniques and striking a good balance on how precisely to define a shortcut--too precise and it becomes difficult to remember, imprecise enough and it cuts down on the total number available. "I do not suffer fools patiently," he explains one evening, "but you are not a fool. Now, let's see if we can't train a bit more precision into that sequence."
Actually -
"Since I can make gates from this side," Promise says to Little Bird, "I wonder if it would be a good idea for me to just live in this world. I could bring a cutting of my tree and some seeds and grow them, somewhere no mortals have grown anything, ideally where no one is claiming the land either, or I could just make a little farm up in my tree's branches if that's not doable. If I were far away from people there wouldn't be that much risk of anyone introducing themselves."
"I think this is a great idea in theory but there is only so much planet and I wouldn't bet there's an inch of land that no one's grown anything, so you'd want to do the branches thing, definitely. And, uh, our population is kind of growing, so even if you pick somewhere uninhabited it might not stay that way."
"I was thinking maybe high up a mountain." She has been reading some of Little Bird's books in between practicing ritual magic. "So it wouldn't be so inconvenient to visit. But if humans are as acquisitive as all that maybe I should just gate to the farthest place I've ever heard of and live there and gate here when I want magic lessons."
"There are some expectations. The choosing one's own nickname thing. Apart from 'nicknames to annoy the Queen' you can pick anything you want. Even Thorn didn't nickname me something else - well, 'leaflet', sometimes, but when it wasn't that or my real name it was always Promise."
So when Promise has the silence ward condensed as she likes, she gates to her tree; she finds it unguarded, and, invisible, takes a cutting and seeds of her favorite other plants, then goes back to the mortal world. Then she gates to the Valley Continent, and finds a nice place to plant everything, far far away from Thorn until and unless she's ready to go back.