Guardian of the Frozen Heart

Elsa... She thought she was over this. She thought that she had finally mastered her powers and that everyone, especially her sister Anna, was now safe from her. But she was wrong. So wrong. Moreover, to make things even worse, her powers turned faulty the very week of her sister's wedding. Seriously, her curse really hated her... It was like that winter disaster three years ago all over again! No! This time, Elsa would have control. She would fix her powers before it goes out of hand again, if it's the last thing she'd do, and not even a weird handsome guy that just showed up from out of nowhere would get in her way...

...

Jack... The man in the moon was obviously toying with him. First, he let him wander all those years, not knowing who he was, what's his purpose and so on. And then when Jack had finally found a place with the Guardians, the moon plucked him off again from his time, took him to a whole new different realm and stuck him in a prison made of ice. The only ice his power could not control! That was infuriating! Completely maddening! He was now back in square one again - wondering what the moon wanted for him to do and adjusting into a whole new world where people didnt really know him. To add to his problems, he seemed to start aging now and a prissy, no-fun lady was giving him orders and even more so headaches. Hay... This would be a long ride...