A young boy known as the Avatar must master the four elemental powers to save a world at war — and fight a ruthless enemy bent on stopping him.

Set in the late 1800s, this origin story follows Abby Walker, an affluent Bostonian whose husband is murdered before her eyes while on their journey...

Willis Wu, a background character trapped in a police procedural, tries to find his way into the larger story–and along the way discovers...

Cordell Walker, a widower and father of two with his own moral code, returns home to Austin after being undercover for two years, only to discover...