"Trillions of them. They might not smoothly integrate, though - the most recent Arda we found is a thousand years ago, and I'm still running it, so it was no trouble to tell them how to restructure their government to be part of a multiverse usefully. Humans don't have as much continuity of rule."

"That part follows pretty naturally from your being immortal, I think."

"Oh, absolutely, I don't think it reflects anything deeper than that. But the Elf multiverse is going to mostly be a coherent political unit, and I don't think the Earths'll do that."

"Probably not. Might come across as intimidating."

"Little bit. Anyway, you now have as much of the picture of interstellar affairs as I do, though I'd be happy to put you in touch with people with more expertise."

"It seems like the kind of thing I'll need to be up on."

"Absolutely. Do you know where you want to start?"

"For the GCP's purposes Hazel and Godspring and procedures to address magically - extra - daeva seem like the priorities."

He can deliver a detailed summary of the Godspring summoning rollout - "humans can't see ultraviolet light, so they don't have any information about how to draw circles outside the dots -"

"Unless they take apart a projector."

"Yep. The circle's microscopic but they could of course get a microscope. Or they could ask a daeva, we think that's the more likely avenue for it to get out. The Valar can restrict summoning to only working in certain locations, that's what they're doing in Ardas, but they don't have the attention to do it everywhere and haven't done it in Godspring. My fork there has been conjuring for summoning circles outside the permitted locations but that of course doesn't catch stolen projectors, of which there's been at least one incident. Local infrastructure is maintained by demons on long-term summons to raise children, which has gone very well so far."

"Like the Martian power grid?"

"Yes, exactly. There was only one incident, one demon decided to end slavery and supplied some underground rebels towards that end. There was nearly a war and we had to relocate her to somewhere without any atrocities she'd be tempted to end. - we finished abolition in Godspring eighteen months after first contact, we were prioritizing doing it peacefully. There's an internal review now evaluating whether we should have moved faster."

"How many mage daeva are we talking about altogether?"

"Right now there are two hundred sixty-four, many of whom are not capable of safely using more magic. There are about a hundred thousand living mages worldwide and nearly all of them are now summoners."

"And some of the magic is harmless - the greenmages are the only really concerning ones in your opinion?"

"Goldmages - the timetravellers - lose the magic when they daevafy. Whitemages, who do healing, inconveniently do as well. Redmages will almost certainly never take summons - neither would bronze - bluemages and silvers could be a danger by accident, greenmages avoid most of the disadvantages of their magic type by daevafying - they forget to eat, sleep, use the restroom, and breathe, but none of those matter to a daeva - and could be a danger on purpose. Copper could be a danger on purpose but less of one, they do increased strength -" and so on -

Niari is very diligent in taking chiplocked notes about all this. "Is there a reliable way to know before we'd arrest one if they're a mage?"

"One has not yet been developed. There are records in all the temple-guilds, those are now available electronically, but if someone dipped a young child and got away forensic conjuration won't help us notice. Precautionary measures should probably be taken for all arrests of ex-residents of Godspring. And I don't know what the laws surrounding disability accommodations in prison are here, but dwindled Godspring mages are mostly disabled with lots of support needs."

"What's the standard there?"

"They have a caretaker assigned to them in childhood who can have an expanded role in care as they become further dwindled. For blue and redmages this is a lifetime contract; I don't know how they plan to handle it after the death of one or both parties." Bright wrote up descriptions for him of mage types and the responsibilities of their caretakers; he flips through countries giving examples.

"Assuming the caretakers are themselves nonmages we can handle them like long term visitors to the prison if necessary. Is transit feasible?"

"Right now there's no way for people in Godspring to get here except via our dimension or Milliways. We're considering setting up a portal on Mars so you can have normal trade relations with them unmediated by Elves, but that's likely thirty years out."

"Milliways doesn't work as a way to get caretakers to Ganymede?"

"Works as a one-off, it's less than ideal as a larger scale solution because the Godspring door is inside someone's personal house and not suited to much throughput."