We all know the story of Joan of Arc. A peasant girl who hears voices from God. A warrior leading an army to victory, in an age that believes women cannot fight. The Maid of Orleans, and the saviour of France. Burned at the stake as a heretic at the age of just nineteen. Five hundred years later, a saint. Her case was heard in court twice over. One trial, in 1431, condemned her; the other, twenty-five years after her death, cleared her name. In the transcripts, we hear first-hand testimony from Joan, her family and her friends: a rare survival from the medieval world. What could be more revealing?

But all is not as simple as it seems, because this is a life told backwards, in hindsight - a story already shaped by the knowledge of what Joan would become.

In Joan of Arc: A History, Helen Castor tells this gripping story afresh: forwards, not backwards, setting this extraordinary girl within her extraordinary world where no one - not Joan herself, nor the people around her, princes, bishops, soldiers or peasants - knew what would happen next.