A gripping historical thriller set in Elizabethan England, Heresy introduces philosopher, scientist, spy and radical monk Giordano Bruno. Having fled the inquisition for the court of Elizabeth I, Bruno attracts the attention of Francis Walsingham, chief spymaster and sworn enemy of Catholic plotters. Bruno is sent undercover to Oxford, where the university is believed to be a hotbed of French dissent but soon finds himself drawn into college intrigues and distracted by a beautiful young woman. Not long after, Bruno is investigating a hideous series of murders, all linked by a letter offering clues suggesting each victim was guilty of heresy. But is he being aided or misled? And could he be the next target? S. J. Parris's dark historical novel was shortlisted for the CWA Ellis Peters Historical Award in 2010 and is a fascinating read, full of vivid detail.