I am not new to Gregory's writing or her use of outside characters to help enhance the telling of mostly historical facts. I enjoyed Mary Boleyn's telling of her sister's rise and fall in the life of Henry VIII in The Other Boleyn Girl. So to read about Hannah who is betrothed at a very young age to a older boy who is becoming a doctor and is rather unwilling, was intriguing. As was the fact that Hannah has the Sight and that she is begged for a fool to King Edward (Henry VIII's son and heir) only to be passed on to Queen Mary when Edward dies. 
 Hannah was discovered at her father's shop by Lord Robert Dudley (Elizabeth's possible lover) and in her youth becomes horrible infatuated with him while constantly in conflict with her betrothed. 
 Hannah as our faithful heroine makes you more interested in her life then the events going on around you though Gregory's telling of Queen Mary's Catholic conviction is terrifying and her grief over the loss of love and child just heartbreaking. 
 The best part of the story is really the telling of Hannah figuring out who she is (not the boy/girl fool) and who she truly loves and can love as a grown woman. 
 I think where The Constant Princess failed The Queen's Fool succeeds.