A gripping saga of medieval warfare and conspiracy, combining awesome set pieces with nail-biting suspense. 

Money talks in this gripping medieval mystery thriller...

It's 1343, and Simon Merrivale is travelling with the Earl of Derby on a mission for King Edward III of England. They are bound for Castile to persuade its ruler, Alfonso, to abandon his traditional alliance with France.

They arrive to find war raging across the country. King Alfonso is conducting an epic siege, by land and sea, against the city of Algeciras, held by the Moorish states. Plots are developing behind Alfonso's back. An old foe of Merrivale's is planning to seize power, not just in Castile but all of Spain. To thwart him, Simon must undertake a dangerous journey, facing down opponents more powerful than any he has encountered so far…

Written by medieval historians who bring an impressive wealth of knowledge to their authentic narrative.