The Mysterium

February 1304, London. A succession of brutal murders shocks the city as it comes to terms with the fall from power of Walter Evesham, Chief Justice in the Court of the King's Bench. Accused of bribery and corruption, Evesham has sought sanctuary to atone for his sins. When Evesham's clerk is found murdered, and then Evesham himself discovered dead in his cell at the Abbey of Syon, it appears to be the work of the Mysterium, a killer brought to justice by Evesham. Sir Hugh Corbett is ordered to investigate. Has the Mysterium returned or is another killer imitating his methods? Corbett will face his most cunning foe yet.