set aboard the steamship "Royal Sovereign" as it departs from Falmouth, with passengers grappling with seasickness. Amidst the chaos, the calm demeanor and noble appearance of Don Carlos stand out as he observes the plight of a struggling English family. His interest is piqued by Fritz Stein, a young German on his way to the civil war in Navarra, seeking a position as a surgeon despite his lack of connections or knowledge of Spain. Their conversations reveal Stein's gentle nature and ideals, while Don Carlos displays a sense of compassion and generosity, offering his help and fostering a burgeoning friendship that may play a significant role in the unfolding drama. (This is an automatically generated summary.)