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.
"...yeah I don't know how to start from there. There's magnets and weird tricks with inertia and stuff. Do you even have cars here yet?"
And someone comes briskly down the hall, greets their guide warmly. " - hello. Princess Nelyafinwë but please call me Maitimë. I like the wings."
"We're tourists! Also it came to our attention that the Valar were going to parole Melkor and they should not do that and we came here to make sure they were advised."
"I don't think they're planning - well, they originally sentenced him to three thousand years and I suppose those are mostly up - where did you hear about -"
"Cam has a magical power for being extremely well-informed." His Quenya is still not very good; she blinks rapidly.
"Our only state secrets are that we've been trying to come up with traffic laws but we can't construct any that my mother isn't in flagrant continual violation of and so haven't come up with any at all, and that we turn up people who need gender preference correction at thrice the rate of the Vanyar and are worried it's something in the water. There, now I needn't worry whether you've discovered my dark secrets. Want to come in and sit down? - actually I am unsure if my chairs are equipped to be comfortable for you."
"I can make a chair if they're too uncomfy but these actually fold up real small. I know all your dark secrets but don't worry I'm very nonjudgmental. I would love to tell you what's in the Vanyar's water but I don't actually know that one."
"There's an idea, I don't think anyone's tried checking their water." She ushers them into a pretty wood-paneled office. There are chairs. "How long have you been here?"