Book One: Change

Kyanna of the Northern Water Tribe had not meant to see her brother and sister. In fact, she was trying to stay away from her siblings. They were, however, still her siblings, and she couldn't stay away too long. She should have expected them by now.
What she hadn't expected, was the Avatar, crazy fire siblings, a devil earth-bender, and a story to tell for generations.
And, boy, did she did tell it.
Eww.