:Gating is a kind of awkward way to keep up with people flying! I can only do it to places I've been before - Nayoki seems to be able to do it from someone else's Farsight, and even if there's not a door to use, but I'd need to practice a LOT to get that down. Which I guess means she might be a better bet for this mission, even though she's not as powerful and doesn't have all the Gifts I do?: 

He turns, smiling a little. :Though if you have a spare suit, I can't say I'd mind learning to fly. Sounds a lot more fun than Gates: 

"On second thought, you're right about Gates being awkward. I have plenty of spare suits—we'll have to stop by the Avengers Facility to get one, but we're going to Earth anyway. Get your time-travel suit on and we'll go."

:I'll be right there!: 

Vanyel is suited up and ready within five minutes, looking actually pretty cheerful about the new plan. He gets to learn to FLY. 

They pop back to 2018 Valinor, then Thor Bifrösts them back to the Avengers Facility. It's now deserted; everyone has Gated out to various secret locations. Tony gives Vanyel a spare suit—the one that Calanáro modified, actually; possibly whatever he did will provide some protection against magical attacks as well as mundane ones—and shows him how to use the controls. They're incredibly intuitive—there's a powerful AI animating the suit, so it can almost anticipate Vanyel's movements.

That is incredibly cool! 

Vanyel is actually smiling as he familiarizes himself with moving in the suit. It's nearly the first time since he died that he's smiled. 

Once Vanyel gets the hang of it, they fly halfway around the world to Kamar-Taj, original Sanctum of the Masters of the Mystic Arts. They land in a discreet spot nearby and travel back to the year 3000 of the Third Age. This is kind of a guess on Tony's part—hopefully they won't land in the middle of anything too unpleasant.

The Sanctum was there even then, albeit smaller, and plainly more primitive in its construction. They walk toward the main building.

They're greeted by an old man in blue robes with the familiar Eye of Agamotto around his neck.

"Who goes there?" he asks. Everyone hears their own language. "Are you friend or foe?"

"We are friends. Do you have translation magic? It seems to be interacting strangely with my own."

"I speak all tongues. The Valar gave me that power, perhaps my one useful blessing on this thankless quest."

"Are you Agamotto?"

"Some call me that. But Pallando I was, in my youth in the West, which I have forgotten. The Valar sent us here to fight Sauron—after taking away all our powers! I didn't even want to come, Alatar dragged me with him, Mandos alone knows why. I did the sensible thing and got as far away from the whole mess as I could. I'm teaching what magic I can to those in need."

He turns to Vanyel. "You have great potential, I can see it in you. I would be honored to accept you at my school for the Mystic Arts."

Vanyel has no idea how to respond to that. 

"I, er, thank you? That's very kind of you to offer. I've had a lot of years of training already, though, um, and we're on a mission here, I can't stay."

He glances hopefully at Thor and Tony; he really, really doesn't feel like recounting what Thanos did, right now. 

"Uh, yeah, that's not why we're here. We're from the future. Someone—not Sauron, though Sauron's working with him—killed half of everyone in the universe with that and its five counterparts." He points to the Time Stone. "We need to borrow it to fix the problem."

Pallando laughs. "Or perhaps you are imposters of the Enemy sent to take it from me! Though at least I would expect him to come up with a cleverer story. Perhaps that's why he came up with such a ridiculous one."

"We're not making it up. We need the Stone. We'll bring it back in what you'll experience as no time at all."

"Look, we can demonstrate the time travel if you want." He travels forward five seconds.

Pallando only laughs again. "Do you know what this is?" he asks. "I excavated the ruins of Almaren itself to find it, the dwelling of the Valar on Earth destroyed two hundred million years ere the first flowering of the Trees. It is a weapon of the First War, the war that built the Earth, and it can destroy it as well. I want no part in this war, but I am no traitor. I will not give it to you."

"Look. We're not working for Sauron. I don't know how to prove it, but if you can think of something that would convince you, I'd be happy to do it."

"I will not lend it to you while this war rages, however great your need."

"Uh, actually, I think we can end this war pretty quickly. I've seen this movie. Sauron's big and scary and all, but I don't think he's much against some good old uranium-235."

He winks back to 2018 Nepal, flies to the nearest Chinese missile silo—woefully under-guarded in the aftermath of the Snap, especially against him—grabs the biggest nuclear warhead he can carry, winks back to the Third Age, flies to Mordor, and drops it directly over Barad-dûr.

"Open a portal about a hundred miles from Sauron's big tower," he tells Pallando, when he returns to Kamar-Taj.

Pallando opens the portal and looks at the mushroom cloud blooming over the ruins of Mordor.

"Impressive," he says. Then he portals to a high peak in the Ephel Duath, and shouts in a magically magnified voice, in the general direction of Minas Tirith:

"BEHOLD! I, THE GREAT WIZARD PALLANDO, HAVE BY MY POWER LAID THE DARK TOWER OF SAURON LOW!"

Tony follows him through the portal.

"Uh, the Time Stone? I'd say this war is pretty much over."

Pallando hands him the Stone, with a somewhat half-hearted admonition to bring it back, and portals down to Gondor to receive his undeserved hero's welcome.

Tony slips back through the portal to Kamar-Taj just before it closes.

"Take this back to past-Valinor and meet us at the Avengers Facility in 2018," he tells Thor, handing him the Time Stone. "I've got something I want to do before I leave."

He turns to Vanyel as soon as Thor winks out. "Unfortunately, Sauron isn't actually defeated yet. It seems kinda rude to leave here without fixing that. This is what I needed your portal skills for—wanna help me speedrun Lord of the Rings?"

:Do I want to– what -: Vanyel shakes his head. :Nevermind. If this world is still in danger - and, er, you're pretty sure we can help without getting ourselves killed out here - then of course I'll help. What do I need to do?: