"They can work on daeva but have to be within a hundred meters, we are just planning to take lots of precautions so you're never within a thousand and if you somehow are you are welcome to just leave."

The fairy reads the fine print on his circle to check that he will in fact be allowed to just leave.

"...Okay."

"Thank you. We have a demon for the boxing part, payment is whatever you'd like her to make you."

"Oh, that's good. I accept."

"Thank you." Through Milliways, through the door, Theodore is holding it for them and Elf-supervised - he'd like Yasenry to make the surroundings of the nearest Dementor -

Yasenry does that. It's on the grounds.

He will give the fairy directions on how to take them to fairly-far-above-there-but-within-sight-of-it!

And the fairy does so.

Box.

Box.

"So you just want this - in space, nowhere in particular? What if it lands?"

"Ideally far enough out it won't land here or anywhere, if I'd planned this from the start I might have arranged to have them all somewhere near Jupiter so we can find them if we ever figure out a solution to their depression-monster problem but as it is, just - far."

"I've never worked in deep space before, I'm not sure I can find you again if I get it out past lunar orbit."

"- okay, how about we grab a hundred and then we can all go out into space together and in the meantime I will ask someone for instructions on things demons can make for navigation."

And he'd like Yasenry to write Cam requesting the aforementioned, and he would like all of these Dementors boxed.

Yasenry writes, and boxes Dementors, and the fairy brings all the boxes along with them.

And once they've got the ones on the Hogwarts grounds it's going to get more complicated.

....he doesn't recognize that location-  doesn't recognize it at the scale of a mile, either - the hundred miles around are Ireland somewhere - he shows the fairy a map -

To Ireland they go.

And narrow it down, and find it. And the next one. It's - well, it would be kind of tedious except flying is pretty amazing.

Has Cam written back with navigation instructions?

He has recommended a little starmap widget specifically designed to help fairies navigate the solar system.

Cool! Eight hours are up before they've tracked down a hundred Dementors; he has the starmap widget made and the instructions for it and hands them to the fairy. "This work?"

And Yasenry can be un-Imperiused. It'll be harder to do it again when he's being all consent-respecting like that but he thinks he can get into the right mental state for it.

The fairy fiddles with the widget and says it seems straightforward enough.

Yasenry looks dizzy.

"You okay?"

"I, I'm not sure I like it as much as I thought I would."

"That's fine. Want to go home?"

Nod.

"Can you make a letter to Cam, asking for another name, and then wait for his answer?"

"Okay."

She gets another name presently and hands it to Timothy.

"Thanks. Have a good day." And home.

She vanishes.

He has notes with all the 2179 legalese, now. He summons a new demon.

The new demon is also excited to try the curse.

Great! Break in eight hours?

Sounds good!

And once they've got a hundred boxes they can take them way way out in space.

The fairy and the widget and the boxes go zoom.

And hopefully the widget helps the fairy come back?

Eventually, yes! "I stuck 'em in the asteroid belt. I like this thing, can I keep it?"

"For sure!!! I think there should only be two or three more batches. Thanks so much for the help."

"You're welcome."

And they track down Dementors. It would be boring even with the flying, except one of them hurt Cam.

How's this demon feeling at the eight-hour break?

This one still likes it!

Oh good!

More Dementors.

There are lots. The fairy puts them all far away.

Romania has the good sense to keep their Dementors - and it looks like most of their neighbors' Dementors, there're only three wild ones in a 500-kilometer radius who are not in a guarded pit! He almost regrets that it's not really feasible to tell them what he's doing. Dementor-hunting is too hard to do in the dark, and following the sun around the globe (Timothy is having so much fun!) only gets you so far; they take a break in a pretty mountain range in the Americas.

Sleeping breaks his mediocre Imperius.

Inconvenient but not exactly surprising; is the demon annoyed about it?

Not especially.

Then they can keep going when he wakes up!

Dementors get spaced! They move too fast to be easily caught even with the nap!

And when every last one is gone he returns to Hogwarts, which is buzzing with distressed Ministry Dementor handlers. "I think it'll be easiest to avoid them by dropping in from above, really fast, and landing in that courtyard, is that doable?"

"Sure," says his fairy.

They descend straight down really fast and land softly in the grass.

Fairies are so great. "Okay, what would you like in addition to the navigator?"

The fairy wants nice chocolate - lots - and some articles of furniture and a set of nice dishware.

This is easily done! "Thanks so much! Should I grab you if I have work like this again?"

"Not for like the next few weeks, I have a thing, but if you want me after sure, I'm Tleren."

"Thanks. I noticed daeva don't normally introduce themselves -"

"Summoners don't usually... care? Unless they want a recurring arrangement."

"I would find that kind of annoying, in your place -"

"It only bothers me if there are a bunch of fairies around and they call us all 'fairy'."

"You'd think that'd create some potential for problems even if they only care about the task. Anyway, thank you very much. Take care. - I get my mail conjured, Timothy Way, if you ever happen to be really looking for something in particular and want a job."

"Oh, good to know."

Fairy can go home! Demon can be unImperiused and thanked and can go home!

"Bye," says the demon. And gone.

And he will also go home. 

And flop exhaustedly into bed. "All of them are gone," he tells Cam before he does.

"Thank you."

"Of course."

And asleep.

Sleepy snuggles.

And a more complete account of things, when he wakes up - "summoners in Revelation sound like they're kind of jerks -"

"Kind of. There was this guy who popularized the 'don't let demons talk' thing, and then there was the furniture angel, fairies don't have any really high-profile disasters but it kind of leaks..."

"Not letting demons talk seems like it's just making it harder to find ones willing to help you out."

"Sometimes people will summon a bunch of demons and talk to them sort of like you were doing with the angels, and then publish a list of demons who do not obviously want souls and have tractable wishlists."

"Is fetish work a tractable wishlist item or no - also I don't get anything out of it if they're girls, I can stick to those if you'd prefer."

"It doesn't come up typically, because for most fetishes that wouldn't get you blacklisted from one of those compilations anyway it's easy to source in Hell or hard to find on Earth; the magic stuff is special. A lot of them have gender-ambiguous or -misleading names and don't disclose on their kink mailing list."

Nod. Snuggle. "It'd be really convenient to have an avenue to open up trade or something with Revelation but I can't think how - if we trusted someone enough we could see if daeva summoned directly into Milliways can open doors to Hell and Heaven and Fairyland, let a couple people go in between, but that's a lot of risk for not much benefit and there's nothing similar that'd get us a door to Revelation -"

"...come to think of it I'm not sure why I get doors to Arda and not Hell or Revelation."

"Oooh, let's ask Bar."

Bar, when questioned, suggests that Cam might be able to get doors to Hell or Revelation if he tried really hard.

" - huh.  - want to try it?"

"...where would the doors be?"

I cannot predict exactly, but a nonrandom location appropriate to you in some way.

...Cam goes over to the door, and stares at it, and pulls it open to reveal his house in Hell.

"Oooh, what a nice place. At some point it'd be convenient for you not to have a summoner, maybe we can figure out how to use this then."

"Yeah, might be handy. I... do not know where it'd put me in Revelation."

He shuts the door and reopens and tries it.

Then he closes the door again. "I think that was Charlie's house, which has been occupied by various random people since he died decades ago."

" - so, sort of an inconvenient location from which to start relations with Revelation?"

"Quite."

"I'll ask the Elves if they have anything terribly valuable to do that they could accomplish if made invisible and snuck into 2179. Oh, and I was going to scold my alt, I can get both those done at once. Want to come?"

"Scold him about what, Fredrick? Is that my business?"

"It's not really mine, either, but I'm going to interfere anyway. 2179's your business, you know if Elf contact would actually be helpful to 'em -"

"I'm sure they could find things to trade, if not super urgently."

When asked he thinks it would be valuable - "ideally with a door to Endorë more than here, but I'll ask my mother if it'd go over all right to have it here, too - and if it turns out summoners don't daevafy except from Revelation then maybe some of the humans and Dwarves'll want to move there, we could shape them up a planet far away from the Earth if it'd be a bad idea to try to integrate them..."

"Have no human or Dwarf summoners from Endorë died yet? Anyway the culture shock would be... major, and setting up a planet a ways off is not a huge cost..."

"We haven't been teaching many people summoning for lack of knowledge of how to do it safely and concerns that not everyone was agreed on the wars being over and vengeance being uncalled for. We were going to ask you once you got back."

"...I probably should have given you a textbook or something before I left."

"I should have asked. Don't worry about it."

Sigh.

"Elf summoners don't Limbofy, that one we did get a check on. But we don't know if that's because we have the backups and don't count as properly dead or because our world doesn't work like that. That'd determine how urgent it is to funnel people to Revelation but it's probably a good idea either way, I'll look into it."

Nod.

" - I also wanted to mention that I don't think you're being very fair to Fredrick."

"Oh?"

"If it were anyone else I'd think it were by accident but you're me."

" - you can ask him if you'd like. I do not think he prefers that I spend less time with him or trust him with less, and unless there are random things I can do that humans find unattractive all of the avenues of getting him to like me less would involve those."

"I think he doesn't believe you about the century of moping thing."

"He doesn't but not for a lack of explanations on my part."