Sing the Warmth — Louise Marley

On the ice planet of Nevya, summer comes but once every five years. Only the powers of the Cantrixes--with their flutelike fillas and angelic voices--can reach into the very air and provide warmth, light, and healing to the people of Nevya.

Kept captive for four years by a dying city, the Cantrix Sira is freed after training another Singer to sustain life. Her methods defy convention, for only Singers formally taught at the Conservatory school can become Cantrixes. But many people have neglected their Gift, leaving a crucial shortage of Singers. As Nevya's light begins to dim, Sira travels the continent, searching for Singers to become her pupils. And though branded a traitor, she is the frozen planet's only hope...