The Brotherhood of Merlin Boxset

Dawn of the Merlin
Before Merlin attained his title and became the greatest knight in Round Table history, he was Perronius, lead knight in Gilleon. He is on his way to completing three impossible mssions in order to prove himself worthy of his claim. This is the story of his last mission.
With only a handful of his most elite knights, Perronius embarks on his final mission: rescue a gifted monk and his son from the fortress of Songre Khan. Khan, a ruthless tyrant, imprisoned the monk in order to gain his knowledge of mortal combat. For no one, not even Perronius is Gaeden Kai's equal.
Perronius will stop at nothing to see Gaeden Kai freed from his bonds -- even if it kills him. The fate of his country depends on it.