Being a physician in the 1450's is difficult. Being a female physician is nearly unheard of in a society that does not value educated, witty women. Fortunately for Avice de Bertilak, her equally unconventional husband, Robert, thinks she's perfect. All is well until her world is turned upside down when an injured Sir Gawain rides into her life.

Gawain is tormented by the memory of a meeting with a magical green knight. Ava becomes determined to rescue him, physically and mentally. As she searches for a way to help him, she's alarmed by her increasing attraction to Gawain and confused when her husband asks her to seduce the great knight. What is Robert's end game?

Combining myth and fact, the novel fills the gaps left by the anonymous author of Sir Gawain and the Green Knight and explores the world of women in the late Middle Ages. They weren't the simpering, passive dolls presented in myth.