The Emerald Flame by Frewin Jones

Branwen has accepted the role that the Shining Ones have bestowed upon her. She is now in the next stages of her journey—this time on a seemingly impossible mission to rescue the spirit of the wind. With her fearless friend Rhodri by her side, the spirits guiding her, and growing feelings for the dashing Iwan, Branwen must overcome terrifying odds if she is to succeed in her quest.

This heart-pounding teen series, which School Library Journal calls “exciting from start to finish,” will appeal to fans of Tamora Pierce and takes readers on a mystical adventure as Branwen answers the call of her destiny.