"Frustrating, that," she remarks. "Am I going to pop in a rad-suited search party? I'd rather not sift through rubble under the circumstances."
And she goes to furious spell-development.
She makes circuits of evacuated people to see if they need to communicate anything, but tries to keep them short. She sleeps one night on one night off. She works. She has to get off this stupid fucking cylinder.
...Loki makes a guess. She doesn't share it. She pops the team back to New Himring.
Maedhros probably makes the same guess, judging by how oddly expressionless he goes. That afternoon Fëanor announces that one should believe and convey absolutely no information told to them by the Enemy, even if he swears to its truth. They're willing to have Tyelcormo babysit a Silmaril at one of the other sites as needed.
Well, he's not on the horizon yet. Just so Loki has fewer things to scramble about if he shows up she thinks distributing the Silmarils would be a good idea anyway; how about she arbitrarily decides on parking him with Dwarves (there are children there)?
Fucking hell. Is Ulmo minding a city yet? How fast does Morgoth move?
"The third Silmaril has been claimed as his own by Elu Thingol of Doriath," he says, and then moves on.
"That's the lie I'd pick, too," Fëanor says. "Where's he going, can you get out ahead of him and take someone and this one with you - though honestly - Loki, I swear to you by my name, by my house, before Eru that if you teach me teleportation I will not even try to reverse-engineer the principles behind your sorcerous alphabet until after we have access to your galaxy, but we can have the Silmarils wherever they are needed only with someone teleporting full time and he would love to hold you back from spell development by having you hop across the continent."
"...I am tempted," she says, "but the third Silmaril is somewhere even if it's not where he says it is, and you have a preexisting oath about it which concerns me very much."
"Are you allowed to loan them to people who are not under the same oath about them, if you are confident they will return them on request?"