Trigger Warnings: Contains references to abuse.

Elsa flopped down on the couch with a sigh. Work had been draining and she wanted nothing more than to spend her weekend doing nothing but watching TV. Her best friend Kristoff had promised to take her out to a restaurant later that day so she had that to look forward to. The blonde drifted off to sleep and awoke what felt like minutes later to a knock at her door. She growled and stretched, checking her watch.

7:46 p.m.

I've been asleep that long? She thought as she got to her feet and shuffled to the door. Rubbing her eyes, she opened it, too tired and lazy to check and see who it was.

"What did I tell you about doing that?" A familiar voice scolded playfully.

Elsa managed a laugh and punched Kristoff's shoulder, wincing when her knuckles popped.

Kristoff chuckled. "You ready?" He asked, grabbing Elsa's jacket off the coatrack that stood by the door.

"Yeah, lets go." She took the jacket and put it on, slipping outside with Kristoff following her.

Rapunzel and Merida met them and they all had dinner together, laughing and smiling the whole time. It was past midnight before Elsa returned home, more exhausted than she was before, but happy. She hung up her jacket and locked the door. Yawning, she made her way to her bedroom and changed into her pajamas. She collapsed in bed and pulled the sheets over her head, sighing at the warmth. She closed her eyes and was about to fall into a deep sleep when—

Knock, knock, knock.

Elsa groaned and pretended that she didn't hear it. But a few seconds later it came again.

Knock, knock, knock.

Elsa checked her phone.

12:23 a.m.

The platinum blonde got to her feet, muttering curses under her breath. Who would be bothering her at this ungodly hour? She stumbled through her darkened home, finding her way to the front door. She opened it, not bothering to check, figuring that Kristoff may have forgotten something and came back to retrieve it. She was surprised when she was met with nothing, then her eyes adjusted to the dark and she saw a girl standing on her porch.

The girl walked forward. "Hi Elsa? I'm Anna, your long lost sister."

Elsa sat across the table from Anna, watching as she gobbled down the sandwich.

She was a scrawny little thing with mud caked on her clothes and in her hair, making it hard for Elsa to tell that it was strawberry blonde. Her shoes were worn out and she just looked tired, except for her eyes that sparkled as she finished the last of her sandwich.

Anna noticed Elsa staring at her and she blushed, using the back of her hand to wipe away the mustard that lingered on her face. "Um...thank you." She said.

Elsa nodded once. "You're welcome but you act like you haven't eaten in days."

"I haven't." Elsa's eyes widened and Anna realized what she said. "I mean of course I've eaten, I wouldn't be alive if I didn't. You can only go, like, two days without water...or was it three...? But you can go much longer without food. Wait, what?"

Elsa stared at her in silence, not knowing what to say. The redhead blushed for the second time in just two minutes. "Uh, sorry, I tend to ramble a bit sometimes." She sent Elsa an apologetic grin.

Elsa smiled back, a bit uneasy though. "Tell me Anna, where did you come from?"

Anna's eyes widened and she gasped. "You haven't had 'the talk' yet?"

Elsa let out a soft laugh despite herself. "No that's not what I meant. I know where babies come from. I want to know where you were before you came here."

Anna sunk in her chair. "Um, yeah...about that," She laughed nervously, "I can't tell you that just yet but I can tell you that I'm fifteen."

"Anna, that doesn't help, I have to take you back."

"I...I can't go back."

Elsa arched an eyebrow. "And why not?"

"I just can't. It's...it's complicated."

"Don't you think your parents are worried about you?"

"Actually, they're your parents too."

"Fine. Don't you think our parents are worried?"

Anna mumbled something under her breath.

"What was that?" Elsa asked, starting to get a little annoyed.

Anna heard the annoyance and sighed. "I'm sorry if I'm bothering you. I'll leave." She stood up and walked to the front door. Elsa got up and followed after her.

Anna had already opened the door and stepped out when Elsa called after her. "Wait. Come back." She couldn't just let this girl, who looked so weak and tired, walk the streets alone after midnight going who knows where. Elsa grabbed her arm and pulled her inside.

Anna stumbled a bit before steadying. "I was hoping you'd say that." She said with a grin.

"I'm going to let you stay here tonight but in the morning I want answers. Got it?"

Anna nodded. "Got it."

Elsa led Anna to the couch and sat her down. "Wait here." She walked to her bathroom and ran a bath. Going back into the living room, she saw Anna patiently waiting for her to come back.

"Come on." She grabbed Anna's arm and guided her to the bathroom.

"Why are we in here?" Anna asked curiously.

"You need a bath. You have mud everywhere."

Anna's heart started racing. "B-bath? Does it have to be a bath? Can't I t—take a shower?"

"Nope. Now get in."

"You mean I have to...? In front of you?"

"Yes. It shouldn't be a problem. I'm your sister, right?"

"Well...yeah. But you're also kind of a stranger."

"A stranger who's letting you stay in her house." As much as Elsa didn't want to do this she had to. She barely knew this girl and she might be hiding a weapon in her pocket, although that seemed very unlikely. Anna sighed and began removing her clothes, feeling her cheeks warm as she did. The older girl picked up the clothes as Anna approached the tub tentatively. She gazed at the water, not making a move to get in.

Elsa stared at her with confusion written all over her face. "Is everything alright?" She asked.

Anna looked back at her. "Yeah, everything's alright."

"Then why are you just staring at the water?"

"I'm not."

Elsa sighed and put down the clothes. She strode over to Anna, lifting the girl up and attempting to put her in the water, stopping when Anna cried out.

"No! Stop! It burns! Papa, it burns!"

Wait, what?

Elsa put her back on her feet. Anna sobbed, burying her face in Elsa's chest. Her hands gripped the front of Elsa's shirt as Elsa awkwardly patted her head, not knowing what else she could do. It seemed to work. Anna calmed down, hiccuping as she did, and stepped back, wiping the tears away with her hand. "I-I'm sorry." She sniffled.

"It's fine."

Anna turned back to the tub, squeezing her eyes shut as she stepped in, bracing herself for the scalding hot water. But she never felt it. Opening her eyes she got in all the way and sat down with a small splash. She giggled, happy that for once the water didn't leave her screaming. She looked up at Elsa, curious as to why she was still here.

Anna's steady gaze brought Elsa back to reality. "Oh sorry. If you need anything, just call." Elsa grabbed the clothes and scrambled out of the bathroom, one thing playing over and over again in her head.

Papa, it burns!