"Forever 17, a wind spirit. That was his offer."

Anna's reaction was totally different from what she had expected. "Oh my god, Elsa, go for it! You and Jack are like, perfect!"

"No, no, no." Elsa said, shaking her hands wildly. "Who said anything about dating?" But she was secretly glad about what Anna had said.

Anna's face fell. "Oh. Well, I think you should still do it. It'll be amazing!"

Elsa hesitated, then nodded and looked at Kristoff. "Take care of Anna, will you?"

"I will." he promised.

Elsa stood up and formed a crystal sculpture of a flower. "Keep this. Remember me."

"Wait." Anna said. "You're not coming back?"

"I will. But keep it." Anna nodded.

Elsa stepped outside onto the freezing balcony, after saying by to her sister then shut the balcony doors. She wrapped her fingers around the ice cold railings. She felt Jack's presence behind her.

"So?" he asked.

"I'll do it."

Together, the two of them flew towards the lake where Jack died. As they got closer, Elsa's stomach started hurting more and more. She was nervous.

Did she have to die to become a wind spirit? Will it hurt? What about us? Me and Jack? What about Anna? What happens during the summer? Do we become human?

Before she knew it, they were there. She and Jack stood on the frozen lake.

"So?" she asked Jack. "What know?"

"We talk. Um, hello? Man in the Moon? I was, you know, wondering if you could make Elsa a guardian?"

Theres was a flash of silvery light and suddenly, Elsa was completely wrapped in it. She was lifted up in the air.

Jack stumbled backward. He didn't know what he was doing and he hoped it wouldn't hurt her.

The light disappeared and Elsa fell on the ground, cracking the ice. She placed her fingers on the ice, healing it. Standing up, Jack realized how different she looked. She was wearing a blue dress and her hair was in a braided bun. Most of all, she was seventeen.

He watched as her blue dress turned to ice, her long trail reappearing, her hand went to her hair and she pulled it down to it's usual side braid. She looked at Jack, her blue eyes icier than ever.

"Wow," she said. "I feel, different."

Jack just stared in awe, at the beautiful wind spirit in front of him. Then he noticed the sky. The northern lights. "Oh no."

"What?" Elsa asked.

"We have to go. The lives of children are in danger."

When Jack got to the North Pole, he realized Elsa wasn't with him. He could have promised he saw her just a few seconds ago. Maybe she stopped to look at something. he thought.

He ran towards North and the rest of the Guardians.

"Okay people. We have good news and bad news. Good news: we have a new guardian. Bad news: Pitch is on the loose and the new guardians missing." North said.

"Oh dear," said Tooth."What do we do?"

"We co-" Suddenly the whole workshop was covered in darkness. Pitch.

Then, all of a sudden, an icy light appeared. The guardians turned towards it.

"You got what you wanted Jack." the girls voice was colder than ice. "But now I can choose my path."

The room brightened revealing black ice all over the workshop. Everyone looked at Jack. He shook his head.

In front of them was a teenage girl. Skin pale as the moon. Dress made of ice with a long trail now tinted black. But what stood out was her eyes.

Thy were a icy blue with a black shadow in them. They were merciless. Pitiless. Hopeless. Evil.

The girl was no other than the girl Jack had fallen for.

"Elsa."

Mwahahahahaha! Cliffhanger! I just had to.

~MiriLaren