He has no idea what ages mean for elves, but—

"He didn't tell us he was sending us back to fifty years out of the fucking Bronze Age," he says to himself.

Fëanor is now very distracted by the floating Iron Man suit. He touches one of the thruster jets curiously and immediately leaps backwards with a yelp.

What is this? he asks, nursing his burnt finger but mostly unfazed. You're—heating air so that it expands and using the—the kick-back effect to lift him? We know about those physical effects, but you must have some kind of mathematical formalism to invent things that use them so precisely—I've been trying to invent one but I had to fix our writing system first—most mathematicians communicate excusively by abstract osanwë and that's really hard for an adult to learn, so if you aren't chosen for the guild at age twelve—which I wasn't—

Nerdanel smiles apologetically at Savil and Tony.

Why don't we find better accommodations for your injured? she asks Savil.

:Yes, let's. Nayoki's not hurt but she's going to want a quiet place to rest, she did a lot of magic: 

Nerdanel goes to put Macalaurë in his crib, then locates beds for Vanyel, Leareth, and Nayoki.

Now that Leareth is relatively stable and no longer requires the suit to levitate, Tony takes it off him.

Fëanor continues to interrogate Tony about physics and engineering.

Thor rescues Tony with an interruption.

"So what's the plan here, are we waiting on the wizards to wake up?"

"Wait—how do you speak Quenya?"

"Translation magic. I'll explain it later."

"We need to make a second pass at the Time Stone. Unfortunately I don't know anything about its history, except that the founder of Strange's order of wizards discovered it thousands of years ago—well, before our time—and it's been with them ever since. I want to get it from slightly before then, while it's unguarded. Problem is, we can't really look up history here, since I'm pretty sure none of it has happened yet."

"So you're saying we should go back to the future. Er, the present."

"Yeah. Actually—ask Fëanor if he knows an Agamotto. Maybe he was an elf, wouldn't surprise me."

Thor relays the question using Allspeak.

Nope. Never heard of him. What does that name even mean—it's not Quenya—

Tony has, of course, no idea.

They go back to 2018 and ask present-day Fëanor the same question.

"Nope, no idea. You could probably look him up, though—most of our libraries are digitally indexed, now—"

He goes to the computer terminal and performs a search.

"Agamotto," he reads. "Local name of the Blue Wizard Pallando, one of the five Istari sent to Middle-earth in the Third Age to aid in the war against Sauron. Known to have abandoned the war early and founded a cult of magic in the East. Fate unknown."

"Wait—Strange's magic order was founded by Gandalf's cousin?"

"Apparently. How are things going in the Years of the Trees?"

"We met past you, he's very excited by our tech. Wizards are still unconscious or nearly so. We're kind of waiting for them to recover—we need one for this mission and another to get to work on long-distance portals."

They go back to the Years of the Trees and wait for a wizard to wake up.

Leareth is going to be deeply unconscious for the next twelve hours, local time, and even when he does start to wake up he's not especially lucid. He keeps trying to ask the Healers something about shields. In Kaled'a'in. Which they don't speak. 

Vanyel, however, gets a solid "night's" sleep - it seems like it never gets DARK here, it's terrible, but he can manage by burrowing under the covers of the bed they've offered him - and then he feels mostly fine.

He gets up, still squinting at the sheer amount of light, and starts wandering around looking for something to eat, somewhere to take a bath, and someone to talk to about the next steps of their mission, ideally in that order. 

This is (a) Fëanor's house, in (b) a time without a clear day/night cycle, so regular mealtimes aren't really a thing. But he runs into Nerdanel, who can show him where the kitchen is and help him make some breakfast, and also osanwë-yell at her husband to start heating some water because Vanyel wants to take a bath. In Tirion there's a central boiler system for the whole city, but this house only has cold-water plumbing—it would be wasteful to heat water continuously in this warm climate.

When he's done with his bath, he can find Tony to explain the next steps.

"We've mostly figured out where we want to make a second pass at the time stone. There are going to be more wizards involved, and probably a language barrier that requires telepathy, so you'd be really helpful, if you're up to it."

:- Oh, right. Of course I'm up for helping. If we don't expect a huge fight, I'm all right now - I guess I might not be at my best yet, if we do expect a huge fight: