Princess Amber of the Fire Nation coughed and stared in shock at the icey landscape surrounding her. Snow covered every inch of ground; enough, so that she wasn't even sure there was earth anywhere at her current location.

Where was she?

The Southern Water Tribe. One moment, she was looking her uncle (Firelord Zuko) in the eyes as he told her that he was sending her back in time to make sure history happened like it was supposed to, and the next, she was shivering in a pile of snow in the middle of the South Pole.

Teeth chattering, Amber felt her hand grow warm as she created a plume of hot, orange fire. Her body felt the heat and shivered longingly at the warmth of it, only to convulse violently at the freezing cold.

Amber had a special and very unique talent: because she was a descendant of an Avatar (two, actually, Roku and Kyoshi), the fact that several universes collided at her birth, and the Sacred Chance, she could learn to bend all four of the elements. Originally, she was a firebender, but by the age of fourteen, she had mastered all four of the elements. She was now at age seventeen.

There was one thing for sure; she wasn't going to reveal her bending skills to the public. At least, not all of them. Maybe earth would be okay to keep.

Amber looked around her to make sure no one was watching, and, with a deep sense of regret, as this would be her last public (well, ok, not public, but unhidden) display of firebending for a while, let out the biggest blast of fire she could manage.

Heat seared through her, filling her with a hungry, unexplainable desire to continue this heat, but she instead suppressed it, shielding the surrounding landscape with ice so it wouldn't melt.

Okay, maybe I'll use firebending in public. She thought. Because I won't be able to bear not using fire.

So she decided that to Team Avatar, she would pretend she was just an earthbender, and to Zuko, she would do the same, revealing her other abilities when she felt like it.

Alright. She thought fiercely, flames edging her clenched fists. I'm ready to make history happen.

Where do I start?