A realistic scene depicting Bastien de Béarn, the master-at-arms, on a training ground in the castle courtyard. Bastien is in his mid-30s, with a rugged, battle-hardened appearance, wearing light leather armor with the house’s emblem: a black bee on a yellow field. His posture is commanding and confident as he demonstrates sword techniques to a group of trainees. His face is focused and stern, with a hint of pride in his eyes. The trainees, a mix of young and seasoned soldiers, are practicing with swords and shields under his watchful eye. The castle walls rise in the background, and banners with the house's symbol flutter in the wind. The atmosphere is one of discipline, resilience, and the passing on of knowledge. Dust rises from the ground as the sound of swords clashing echoes through the courtyard.