Merlin AU: A long war during Merlin's formative years sparks in him the desire to be a Physician. And to pursue his dream, he undertakes an apprenticeship under Gaius, King Cendred's Court Physician who was formerly of the conquered Kingdom of Camelot. However, when he inevitably meets the King's Royal Hostage, Merlin comes face to face with a destiny that goes beyond his desire to be a Physician…