'Are you ready?' Jack Frost asked Elsa. He stood on her window still, the moonlight magnifying his shadow around her room. A cool night breeze blew around him.

Elsa gazed up at Jack, her expression neutral. Not one of the many emotions she was feeling was surfacing. Anna had returned so suddenly, sending Elsa into shock. She could not do what she had planned. Elsa didn't want Anna to know about Jack. If Elsa suddenly disappeared for what could be days Anna would go insane with worry. Elsa couldn't do that to her sister.

On the other hand, Elsa and Jack had been planning this trip for almost two weeks. She really wanted to go and knew Jack wanted her to. He'd said the trip would be good for her and gaining a better hold over her powers. She was really excited, if not a little bit fearful, about meeting Jack's friends.

'I don't know Jack,' she confessed softly. Elsa sank to her knees and knelt in front of Jack, hanging her head.

Jack stepped down off Elsa's window, his attention turned fully to her. He couldn't believe what he heard. They'd been planning this for ages. Elsa seemed really excited about it. Jack couldn't wait to get her away from the castle life. Show her life can be fun. Introduce her to his friends. Loosen her up a little. But now she was backing out? No, he wouldn't have it.

'What do you mean "you don't know"?' Jack asked softly but sternly. He felt anger stirring inside him but was quick to supress it. It wouldn't help if he stated yelling at her.

'I mean, I don't know if I can go,' Elsa replied without looking up. A quiver made its way through her words. She didn't want to tell Jack. She knew he'd be angry with her. She rested her hands in her lap.

'Why not?' Jack responded firmly. 'We've been planning this for a while now, Elsa. You've known about this. I thought you wanted to come with me. If you didn't, why didn't you say something?' Jack couldn't believe what he was hearing. Elsa should've told him, not played him like this. He gripped his staff in an attempt to quench his anger. He would not yell at her.

'It's my sister, Anna,' Elsa explained. 'She's returned from her honeymoon with her husband, Kristoff. She came back today and I had no idea.' Elsa paused re-thinking her words. 'I mean, I did know she was only going for two weeks. So I guess I should've known she was coming back, but I just got so caught up in this trip, learning about my powers with you, that I must've forgotten,' Elsa admitted sheepishly. She had forgotten and was embarrassed to admit it.

Jack opened his mouth to speak but Elsa cut him off.

'Earlier this evening,' she continued. 'Anna told me that I'd changed. She said that I look like a mess, that the servants told her I wasn't eating and I've been neglecting my royal duties which, upon reflection, I guess I have,' Elsa realised. Shock flowed through her. She couldn't believe she'd allowed herself to act this way. 'If I just leave without any warning, Anna will worry. She'll worry so much, it might almost kill her. I can't put her through that,' Elsa finished, sneaking a look at Jack, willing him to understand.

Jack exhaled and ran a hand through his hair. Frustration filled him. He really wanted Elsa to come with him, for her to leave. But he could understand what she was saying.

'Why don't you tell her where you're going?' he suggested.

'I wish I could,' Elsa replied standing. She moved away from Jack, turning her back to him. 'But I don't want her to know about you. She'd want to come with us and she might get the wrong idea,' Elsa finished.

The wrong idea, Jack thought. The idea that he and Elsa were together. Jack felt a pang of loneliness. He knew now, after spending close to fourteen days with her, that he was in love with Elsa. But he felt conflicted because she'd lain her terms plain and clear. And that she didn't want her sister to know about him only added proof to how Elsa felt about him.

'Elsa,' Jack soothed closing the distance between them. He put a cautious hand on her arm and for once she didn't shrink away from his touch. Elsa turned to face Jack.

'Come with me,' he said staring into Elsa's eyes. 'It's only for a few days. I can teach you so much. I will be good for you.'

Elsa held his gaze unable to tear her eyes from his. She knew she should but she didn't want to. Elsa thought about his words. She took them seriously. All of them. She desperately wanted to leave with him. But would Anna be alright? She wouldn't know where Elsa had gone. Anna would be sick with worry. But it was only for a few days, Elsa reasoned. What was the harm?

Jack reluctantly tore his gaze from Elsa's. He moved back to the open window and turned to face Elsa. Jack held his hand out to her. 'Elsa, will you come with me?' he asked stepping up onto the still.

Elsa looked at the door standing slightly ajar behind her. She thought of Anna, sitting at the table at dinner where Elsa had left her. For a moment she considered running from Jack, back to her sister, someone she'd known for her whole life. Despite that she'd known Jack for two weeks, he was still a stranger to her. But he could teach her how to live, something Anna could never do, or even understand.

Elsa looked at Jack, his hand outstretched. She walked towards him and placed her hand in his. She looked into his eyes and whispered one word.

'Yes.'

Jack's face broke out into a grin and Elsa returned his smile with one of her own. Elsa stepped onto the still next to Jack, her hand clasped in his. Jack flew from the still, taking Elsa with him.

Outside Elsa's door Anna stood, frozen and in shock from what she'd just witnessed.