Isobel creates stunning portraits for a dangerous set of clients: the fair folk. 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. What force could Isobel's paintings conjure that is powerful enough to defy the ancient malice of the fairy courts? Isobel and Rook journey along a knife-edge in a lush world where beauty masks corruption and the cost of survival might be more frightening than death itself.