1342: England's archers crossed the Channel to lay a country to waste. Thomas of Hookton was one of those archers. When his village is sacked by French raiders, he escapes from his father's ambition to become a wild youth who delights in the opportunities which war offers -- for fighting, for revenge and for friendship. But Thomas is hounded by his conscience. He has made a promise to God to retrieve a relic stolen in the raid from Hookton's church. The search for the relic leads him into a world where lovers become enemies, enemies become friends and always, somewhere beyond the horizon that is smeared with the smoke of fires set by the rampaging English army, a terrible enemy awaits him. That enemy would harness the power of Christendom's greatest relic -- the grail itself.