The Greening: On the Wing — Constance Sprague

In "On The Wing," the final volume of The Greening trilogy, a young woman joins forces with her demon-fighter mother to battle crazed arsonists bent on world destruction. Eva Carter, who ran away from home as a teenager to find the father she never knew, finally learns the truth about Shiloh Carter's "day job" when she returns to help her mother in the struggle to repair damage caused by destructive magic sown in the Greening. In the process, Eva reconnects with her emotionally wounded father, her haunted grandfather, and a winsome sprite with otherworldly Green connections. But when Destiny comes calling, Eva and Shiloh join forces with a ragtag crew of not quite superheroes as they head into the final battle. Sooner or later one of them will have to pay the ultimate price to save the world from going up in smoke.