The brilliant new Elizabethan thriller from the highly acclaimed author of SACRED TREASON. 1564: Catholic herald William Harley, Clarenceux King of Arms, is the custodian of a highly dangerous document. When it is stolen, Clarenceux immediately suspects a group of Catholic sympathisers, the self-styled Knights of the Round Table. Francis Walsingham, the ruthless protégé of the queen's Principal Secretary, Sir William Cecil, intercepts a coded message from the Knights to a Countess known to have Catholic leanings. He is convinced that Clarenceux is trying to use the document to advance the cause of the Catholic Queen. And soon Clarenceux enters a nightmare of suspicion, deception and conspiracy. Conflict and fear, compounded by the religious doubts of the time, conceal a persistent mystery. Where has the document gone? Who has it and who really took it? And why? The roots of betrayal are deep and and Clarenceux's journey towards the truth entails not just the discovery of clues and signs, but also the discovery of himself.