Daughter of Air and Storm — Sherryl King-Wilds

A child is born under the darkest of moons. Soon, she finds the elemental power of air has given her strange and frightening magics. Through her mother's intervention, the girl--Larka--lives to be bound to Gilly, the weather witch. But the weather witch is a harsh and unpredictable mistress. Escape seems impossible for Larka until the air elemental shows the girl kindness. At this, she entrusts the course of her life to its guardianship. The air elemental, however, has ambitions of its own. . . .