Great. We got both in one place. Can you, like, open a portal right below them? Past Nat will be confused as hell, but we can explain later.

:Directly under so that they fall through? Where do you want the other end?:

Yeah. Can you put the other end at the Avengers headquarters? The place where we were staying? At this point in time it was just an empty warehouse—I dunno if that messes up your portal magic—

Do it on my mark, as soon as she manages to stop the energy beam.

A few seconds later, 2012 Nat makes a final jab at the source of the beam, and it starts to power down.

Now.

For most mages this would be a problem! 

They traveled overland to New York from the headquarters before going back in time, though, so Nayoki knows the approximate bearing and distance, and she can anchor the Gate on 'this place, but now, still an empty warehouse'. 

It takes the search-spell longer than usual to stabilize on its destination, but the actual distance in miles isn't that far, for her, Within ten seconds a circular glowing ring appears directly under Nat and the now-powered-down source of the energy beam; it's about six feet across, big enough that she'll definitely fall through. 

The other side appears, also parallel to the ground, but at just-below-normal-ceiling hide, somewhere in the middle of the warehouse that would later be converted into the Avengers' headquarters.

Vanyel breathes out between his teeth, ordering his mind and body to stay relaxed, and keeps all of his Othersenses extended, watching for any hint of approaching threats. 

Alright. Can you do another one, upright, destination about twenty feet from the first? Also, drop the invisibility—and whatever's making me look like a Targaryen—I think I'll want to be recognizable for this.

:On it: 

Nayoki drops her half of the illusion with relief, it's very annoying to do complicated Gates at the same time, and snaps down the horizontal Gate before Nat can try to get back through - it'll be above her head, in the warehouse, but some people are stupidly good at jumping. 

She raises another Gate, still unscaffolded, but with the orientation and approximate shape of a normal door. Hopefully, 'there, but twenty feet north' isn't in the middle of a wall...

Aww, his illusion didn't even get to do anything. Brightstar quickly dismantles it, and heads through Nayoki's Gate first, mage-sight and Thoughtsensing on full alert. 

Natasha is very confused about why she just fell through a portal into a warehouse! She does have very well-trained combat reflexes, though, and she tucks and rolls out of the way of the falling machinery, then springs to her feet, gun in one hand and scepter in the other.

"What the fuck—Tony?!" she says when he comes through the second Gate.

Then she pauses a moment, reconsiders the situation.

"I don't know what tricks you're up to now, Loki, but it's over. You've lost."

Tony, just in case, closes his helmet over his face.

Guys, you're going to want some kind of physical shielding, just in case, he thinks at the mages. That thing in her hand can, ah, shoot metal projectiles very fast. Quite dangerous.

"I'm not Loki," he tells Nat. "We're from the future. 2018. Thanos—the guy who sent Loki—managed to get all six Stones. Wiped out half the universe. We need to borrow the Stones from this timeline to fight him and bring everybody back."

Nat laughs. "That's pretty clever. But no."

"Uh, I'm really sorry about this, but I don't have time to stand around and talk about it—"

Guys, he says to the mages, now would be a great time for a little mind control.

:I apologize for this: Nayoki says to the earlier-timeline Nat, and then hits Nat with a compulsion to FREEZE AND DO NOTHING; it takes her slightly longer, but it'll be faster to undo than a set-command, and she can't exactly leave Nat with Mindhealing on her, there's no one else who could undo it. 

The Infinity Stone set into the scepter flares, and the compulsion unravels.

"Nice try. But you don't have your magic mind-control wand anymore. I do."

"Alright. Let's talk about this. You can hold onto the Stones for now, and I take you to the future and show you I'm not bullshitting you?"

"I suppose I doubt you—er, Loki, if you're in fact not him—could fake an entire world."

"Alright, give me a second."

I need to borrow a time-travel suit to take Nat to the future and show her I'm not lying, he tells the mages. I'll bring it back to this point; I won't be gone for more than a second, from your perspective.

This exact scenario wasn't, exactly, one that they planned for, but 'damage to one of the time travel suits' was, and they've discussed who would be the best option to leave behind. Or, in this case, hopefully not leave behind but with some risk. 

:Noted: Nayoki says, and glances over. 

Featherfire starts stripping out of her suit. She isn't that bothered, really, by being the most expendable person here. 

:Vanyel, can you loop in Leareth about this?: 

Leareth is still comfortably within Vanyel's Mindspeech range, even without Yfandes there to help him out; he can reach that distance without having to boost with mage-gift. 

:Update. Have both our stones. Also have Natasha from the past. She thinks Tony is Loki. He's borrowing Featherfire's suit to take Natasha to our time and convince her we're telling the truth: 

:- Acknowledged: Leareth's Mindspeech is terse and tightly shielded. He's distracted. 

Featherfire offers her suit to Nat. 

Natasha puts it on and grabs the Tesseract. She and Tony both vanish.

They reappear in the same spot, six years later—now renovated and painted very white.

Nat gets the alarm that they've returned, and comes running.

"What."