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.
And he writes home and goes home and gives Miranda her presents and asks Cam about Circle Luxembourg.
"It's a cute idea but it's not going to work, it has to be pretty close to flat. If you can find a rotary or a beltway that might work, I don't know off the top of my head if Luxembourg has any."
Luxembourg is kind of mountainous but there is a large public square type thing in the middle of Luxembourg City which could hold quite a lot of circle.
Gerlinde would love to complete a circle like that, can he make most of it for her? If she dismisses him after completing it will it still count as live?
Yeah, circles made while he's on a summons are still around when he gets home but if he has a bunch of them again he wouldn't be able to tell which one's hers.
She could do it right after instead? She's a little concerned someone will notice it and damage it.
That's a concern even if she finishes it, if someone then breaks it before he grabs it it won't be there. He could easily get materials that won't come up easily but then the city seems likely to be annoyed with him.
It just has to take a little doing, not necessarily a lot of doing. So like, not chalk, but water-soluble paint?
"Oh, right. Make yourself a big circle like we talked about and I'll tell you the last book I read."
"Done!" And he does that. The binding is exquisitely legal so they will not stress out their anticipated very large audience.