He was an orphan and a bastard, but his ambition was clear: that when his father, Don Rodrigo Seijas, lord of San Paio, would be proud of him when he returned from the crusades. That was why he had climbed the high rocks to find a falcon chick that he reared as a present for his father. But the bad news finally arrived: Don Rodrigo was not going to return. And that's where it all began. Violently evicted by his half-brother, he is taken in by Guy de Tarba, loyal esquire of the lord of the manor, and Laín sets out with him on a journey full of danger and adventures. From Galicia, they cross the Pyrenees and travel to Venice, where they set sail for distant Palestine. Persecuted by the Templars, he is betrayed, tricked and tortured… but he becomes a man and a hero. And just one thing keeps him alive: the hope for revenge. Like a modern cantiga, Martín Códax relates the story of Laín.