An Enchantment of Ravens by Margaret Rogerson

With a flick of her paintbrush, Isobel creates stunning portraits for a dangerous set of clients: the fair folk. These immortal creatures cannot bake bread or put a pen to paper without crumbling to dust. They crave human Craft with a terrible thirst, and they trade valuable enchantments for Isobel’s paintings. But when she receives her first royal patron—Rook, the autumn prince—Isobel makes a deadly mistake. She paints mortal sorrow in his eyes, a weakness that could cost him his throne, and even his life. Furious, Rook spirits Isobel away to his kingdom to stand… Read more.