Child of Fallen Waters — Esther Mitchell

A friend's quest for identity sends Telyn and her party into a land long draped in secrecy and legend. The truth they find staggers them all, because when the next Chosen is revealed, her identity will leave Telyn questioning her own fate, and the choices she's made.

And when Telyn's life is upended by a disaster she never saw coming, she finds herself up against the most important question of her life: Is her pride and fear worth the cost, if that cost is everything she loves?