For ultranos, who asked for an almost diplomatic incident and got...well, crack.

Kristoff wakes up to the sound of his door slamming open. Anna flies through the threshold and in very quick succession almost kicks herself in the face, trips over a nonexistent hindrance, and falls onto the floor.

This isn't really a surprising thing to view, but what is surprising is that instead of bouncing up like nothing's happened she just kind of…stays on the floor, making vaguely terrified noises.

He slowly pushes himself up. "Anna? Are you…okay?"

"I'm not."

"Not okay?" He jumps off his bed immediately. What if— "What's going on? Did—"

"No, I'm—" slowly, she raises her head. Kristoff's chest ices over when he sees the profound misery in her eyes, but then—

"I'm not Anna."

Wait, what?

He stares dumbly as she sits up, running a hand through her hair. "We were looking over an old book—I touched something that I wasn't supposed to, and…"

But Kristoff's still fixating on the way that Anna—or whoever—is clasping her hands; Anna does it too, but not like this, but this way does look weirdly familiar—

And.

He's suddenly and painfully aware that he's not wearing any pants.

"Elsa?"

Anna, meanwhile, is panicking very methodically inside a kitchen pantry.

"It's not that bad," she tells herself, stuffing a fistful of chocolate into her mouth, "I mean, it is that bad, but it's not that that bad. Elsa setting off an eternal winter, that was worse—"

(Of course, she might set off an eternal winter right now, but that's—okay, that's not the point here, the point is that there has to be at least one thing worse than what is happening right now.)

When Elsa and Kristoff finally find her, she's standing listlessly in the middle of a small blizzard, still trying to think of something else that might be worse than her current predicament.

"Oh good," Kristoff mutters as Elsa drags him into the pantry Anna's currently hiding in, "This isn't going to start any rumors at all."

Elsa ignores him, too busy shivering at the sudden temperature change. Is this what people feel like all the time?

Her hand flicks up as if to dispel the winter scene in front of her. Then she remembers. "Anna!"

"I can't stop," her sister wails, flapping her hands around and only making the snow worse, "I keep trying—"

Elsa winces as she hears her own vocal chords warp toward hysteria, and hurries forward to give her sister a quick hug. At least her sense of balance in Anna's body is getting a little better, but it feels weird, being the shorter one. "No, no—it's okay. I thought I told you stay in the library while I went and got Kristoff—"

"I meant to," Anna mumbles into her shoulder, "But then I made a snow duckling, and then it ran away. See?"

Sure enough, there's a pure white duckling sitting placidly a few feet away.

"It's so cute," Kristoff says, before he can stop himself.

"That doesn't matter right now," Elsa says, ignoring him for a second time as he turns an alarming shade of puce, "Anna, I was supposed to sign a treaty with foreign emissaries fifteen minutes ago."

Her own eyes gaze back at her in horror before filling with tears. "What are we gonna do? I can't go to that meeting as—as you, I can't be you, I can't even stop this snow—"

"It's okay," Elsa repeats, hugging her for the second time, "Getting upset only—"

She stops, shivers again. "We'll figure it out together."

Anna sniffs, and then gives her a watery smile. "Maybe if I do this—"

Elsa has to duck to avoid her own fist as it suddenly jabs out; moments later, a snow kitten wanders out of brand new snow drift, mewling.

Kristoff stares around at the pantry in general, and then lets out a laugh that sounds almost maniacal. "Oh," he says, slapping his hand to his forehead, "This isn't happening."

Anna does manage to finally stop the blizzard—by doing a weird thing with Elsa's hands where she stretches out with her palm up and bends her middle and ring fingers—but not before there's practically a zoo in the pantry. After that it's just a matter of sending her to the meeting as Elsa (against all of their better judgment) and then stealing back to the library with all the baby animals in tow, so they can figure out how to reverse what's happened.

Or—Elsa's doing that, Kristoff's mostly watching the snow creatures, and.

Well.

From the desk, Elsa sighs. "No," she says.

Kristoff ducks his head quickly, scratching the bear cub on his lap behind its ears. "I didn't say anything."

When he looks up again, Elsa is staring at him. "No," she repeats.

It's weird to see that kind of…weight in Anna's eyes, but he makes himself meet Elsa's gaze this time. "You haven't even thought about it?"

"Of course I'm thinking about it." she snaps. The book she's holding flies across the room, and she starts to pace. "Of course I—I used to wake up in the mornings, and think that if I just—kept my eyes closed for long enough, my magic could just. Always, for years and years."

"Elsa," Kristoff says quietly, "I didn't mean—"

But Elsa shakes her head. "She's my sister. My magic—I don't care. I would never. No."

She sits down again, tries to run her hand through Anna's hair. It doesn't…work quite right, so she huffs and unties Anna's pigtails. "Hand me that book."

"—I was so embarrassed, because it wasn't just one snow bunny, it was a whole bunch, and who's going to take, y'know, The Queen seriously if rabbits randomly spring out of the ground during the middle of an agreement—"

"Anna," Elsa says.

"—but then the Princess of Corona—she's great, her name's Rapunzel and I asked her to eat with us tonight, by the way—she just kind of made this noise, like—eeee? Or like—yay?Anyway, she started playing with them, and then everyone just kind of laughed? Even the really angry guys from Selfoss, and everyone ended up signing the treaty. Diplomatic crisis averted!"

"That's brilliant, Anna," Elsa says, and—yep, that's totally pride, Anna can read her own face. "But the spell's ready."

She blinks. "Spell? Oh, right."

They make their way to the space Kristoff cleared out for them, but before Anna grabs—well, her own hand. "Elsa. Are you…?"

"Don't." Elsa doesn't look at her.

But Anna wants to. She just—she doesn't really like the magic, because it's kind of inconvenient and she'd need to figure out a way to stop creating snow animals before there's an infestation, but. It's not…

"It's not bad," she says, "Or—not for me."

"Not yet," Elsa counters. Then she smiles, pushes a strand of hair out of her eyes. "Besides, what would Kristoff do if we did, huh?"

And Anna laughs, despite herself, and lets Elsa lead her on.

Before they sit, though, Anna reaches for Elsa's hand again, squeezes: Are you sure?

Her sister squeezes back. It's okay.

Elsa keeps her eyes closed for a while, even after she's done everything the book'd told her to do. Lets the magic last, for a little while longer in her mind.

Then she opens them. Everything's gone back to normal, except for the snow animals.

She smiles.

"Boy, it's weird to be back in my body again," Anna laughs, before leaning over to help Kristoff up—

And, in the split second before she realizes that's my face I'm still looking at my face—overbalances, and sends her own body flying.

Kristoff lets out a high-pitched groan as he slams into the nearest wall, and then promptly passes out.

Anna stares in horror at Kristoff's massive hands. Her massive hands, now.

"Um," Elsa says, "So it's possible that…that didn't go quite right."