Well, maybe there's something published on the subject in the last couple decades.

(Thuringwethil gets a visit and a question.)

"Oh, hey, princess."

"Hey. Sauron-related question."

"One of them loose?"

"How'd you guess."

"Little bird told me."

"Anyway, yeah, one's loose, we're sort of academically curious how evil he is at this point, when does that start?"

"...he was at least apprised of everything that went on in Utumno. It wasn't, like, his thing - orcs were Melkor's passion project - but he, like, had a go at seeing if you could get Elves to have half-Maiar children, that kind of thing..."

"...did that fail in spite of Lúthien as proof of concept or are some running around?"

"Can't get the Elves not to abort, I think? I was not involved, because the fuck."

"Congratulations. Why couldn't they abort when it was orcs?"

"That's a normal pregnancy, you just make the mother forget."

"Ah. Anyway. Thanks."

"Yeah. Have fun."

"This one's not looking like much fun but we'll try."

"Need help? On anything except deciding if you can murder with abandon?"

"You any good at murdering with abandon?"

"...yep but, like, worse at it than Sauron, unless you've got a way to surprise him and assuming he hasn't picked up new tricks."

"Oh well. Thanks anyway."

And this information is propagated to the peal and Elspeth takes a moment to earwire the Telperion Valar in case they were curious.

They think that's terrible, thank you Loki for checking.

...Boots starts working on an anti-teleportation spell that could be cast on Sauron and is specific to wizardry teleportation so he can still be moved by other means.

Good skill. How long -

Few weeks, but we can't move the planet and can't guarantee being able to catch him inclined to stay substantial so it's not a complete solution.

Can we move everyone else off the planet and then black hole it?