SATAN IN ST MARY'S 1284: Edward I is battling a traitorous movement founded by the late Simon de Montfort, the rebel who lost his life at the Battle of Evesham in 1258. The Pentangle, the movement's underground society whose members are known to practice the black arts, is thought to be behind the apparent suicide of Lawrence Duket, one of the King's loyal subjects. The King, deeply suspicious of the affair, orders his wily Chancellor, Burnell, to look into the matter. Burnell chooses a sharp and clever clerk from the Court of King's Bench, Hugh Corbett, to conduct the investigation. Corbett - together with his manservant, Ranulf - is swiftly drawn into the tangled politics and dark and dangerous underworld of medieval London. CROWN IN DARKNESS 1286: on a storm-ridden night, King Alexander III of Scotland is riding across the Firth of Forth to meet his beautiful French bride Yolande. He never reaches his final destination as his horse mysteriously slips, sending them both crashing to their death on the rocks. The Scottish throne is left vacant of any real heir and immediately the great European princes and the powerful nobles of Alexander's kingdom start fighting for the glittering prize. The Chancellor of England, Burnell, ever mindful of the interest his king, Edward I, has in Scotland, sends his faithful clerk, Hugh Corbett, to report on the chaotic situation at the Scottish court. Concerned that a connection exists between the king's death and those now desirous of taking the Scottish throne, Corbett is drawn into a maelstrom of intrigue, conspiracy and danger. SPY IN CHANCERY Edward I of England and Philip IV of France are at war. Philip, by devious means, has managed to seize control of the English duchy of Aquitaine in France, and is now determined to crush Edward. King Edward suspects that his enemy is being aided by a spy in the English court and commissions his chancery clerk, Hugh Corbett, to trace and, if possible, destroy the traitor. Corbett's mission brings him into danger on both land and at sea, and takes him to Paris, and its dangerous underworld, and then to hostile Wales. Unwillingly he is drawn into the murky undercurrents of international politics in the last decade of the thirteenth century.