The Valar announce that they've done as much as they can in Singularity (they can't bring back peoples' babies in that critical period either, but they can get them earlier versions) and are setting up portals between there and Sanity as soon as they are confident they've cleaned up the plague. A bunch of Elf architects have this wild idea for a fivedimensional city where alternating intersections are interdimensional portals between various Valinors and they get eagerly to setting it up.
"If we really wanted to go that route I'd give it to your dad to work on but I didn't see an obvious fix."
"Dots with really good video surveillance so we can notice and handle problems, and a rule against taking the daeva offsite, might be okay."
"Projectors that don't work without external electricity are easy - I think easier than the kind which work anywhere, actually - they just have batteries in case of outages or something, and could be designed without them."
"Then wizards break the dots, yeah. And we still have the problem where ex-wizard daeva will be highly motivated to get their magic back and are, by and large, not exceptionally nice people."
"Ideally it'd work on individuals and not just areas but that seems like not how they work."
"As far as I know, yeah, they don't seem able to do that. Areas might be enough, though, if the dots were safe."
"Enough to get people summoning; not enough to make the daeva realms safe. For all we know accidental magic is enough to turn a lizard into a dragon - or somebody will waylay Minor in transit next time a park wants a pair - or a fairy will steal a potions cupboard with unicorn hair in it - and then people can make their own wands."
"Not impossible, over a long enough time scale, but by then we're going to need to be policing the daeva realms anyway, I don't think the Elves're expecting the forking thing to stay quiet forever and the orcs'll finish their artificial womb..."
"I don't think she has any money, but if you'd otherwise take the case I could endeavor to persuade the court to cover it."
"It doesn't seem as interesting for precedent-setting as the last one, but I do set my rate such that I'll happily represent even very boring clients who pay it."