:With Leareth -?: 

A long pause.

:...Sure. Why not. I'll be right over: 

Given her Thoughtsensing, Savil knows exactly where Vanyel is. She arrives within a couple of minutes. 

Thor borrows Tony's time travel suit so that he can show Jane, and together, they all go back to 2014 Asgard.

Jane lays on her hospital bed, transfixed by a single word that future-Thor said casually before Bifrösting out—apparently in the future he could summon the Rainbow Bridge with an axe, but that isn't at all what she's thinking about right now.

Valinor.

Most people wouldn't have known what the name meant, nor been paying enough attention, in her situation, to notice it if they did. But her mind flashes back to an obscure volume she discovered in her college library her freshman year, a book which had become her obsession for the next several years, until the pressures of earning a physics degree had forced her back to more relevant pursuits. She hasn't actively participated in what one might call "fandom" in years, but the Silmarillion has stayed with her, in a way few other works of fiction had. Well, it isn't fiction after all, is it? She's discovered recently that hard science and ancient legend aren't nearly so incompatible as she had once thought. She isn't even that surprised, to find that Tolkien's work was based on the truth; in hindsight, how could it not have been?

She finds herself wishing she could remember the passwords to some of her old accounts—not to re-read her awful fanfiction, definitely not that, but she wrote an essay once on the strange coincidences that made it seem like the Silmarillion was a story about a high-tech society filtered through a much lower-tech one. Eärendil's canonically-existing spaceship. A description of the War of Wrath that sounds rather like a nuclear explosion. Effects of the Silmarils on mortals that are indistinguishable from ordinary chronic radiation poisoning. Even a couple of vague hints that some of Rivendell's vague Elvish magic might have just been electricity. All her theories were true, most likely, if Asgard is anything to go by.

From her perspective, Thor returns seconds after he left, with one additional person, an old woman.

"Wait—did you say Valinor before you left? As in the Silmarillion?" she asks him.

"Yes. It's another Realm that I hadn't heard of—how did you hear about it? I don't know what a Silmarillion is but if it's related to a Silmaril then I have encountered those."

"You what—they were lost forever—

"The Silmarillion's a book. About the history of the Elves in the First Age. I knew it—and loved it—as a work of fiction. It's, uh, interesting to find out it's not." (Mostly exciting, but it also contains a lot of horrible suffering that she would prefer not have happened to actual people.) 

"I'm surprised that this distracted you from the time travel."

"Oh, the combination is even more exciting—I mean, elves are immortal, so I could technically still hope to meet one, but Fëanor, uh, wasn't—"

"We're hanging out at his house right now. Sometime way back in the past—I don't know how far precisely but it must be a long way since there's no sun—"

dhjsjgkhsj.aghdjlk'anwklsnklnsks.ngkns,mdgnsm, is the only possible response she can come up with to that.

"Okay. You're going to have to back up a bit. What, exactly, is happening in the future?"

"Someone used the Infinity Stones to murder half the universe. We're going to prevent it here—probably by taking your Reality Stone and not giving it back—but we need the full set of six to undo it, and right now Thanos still has the ones that belong to our timeline. We're using way-past Valinor as a safe base of operations."

Aaaaaaah half the universe—

"Alright I'm going to trust you to fix that since it is way out of my league of problems to deal with. But if you're still gonna show me the time travel, I want to see the Two Trees, not the universe that's half dead."

"Right."

Then he turns to Vanyel, Leareth, and Savil. "Apologies for that—I'm not sure how much you could understand. This is my girlfriend Jane—" :Well, ex-girlfriend, in our timeline, but I haven't mentioned that since it's kind of awkward: "She apparently knows of Valinor and elves from a book that she previously believed to be fiction, and would like to see them, so she'll be coming back with us, I suppose."

"At any rate, you wanted to see Asgard, so let's go somewhere other than the hospital. Jane, are you ready—?"

"I'm feeling much better now that a magic artifact is no longer trying to eat my arm!"

"Alright, let's go. Keep in mind that humans aren't technically allowed here, but there won't be any trouble as long as you don't make any."

He takes them to a window with a view of the city. "Any particular thing you'd like to see more closely?"