The Rodriganda Romances

The young German doctor, Karl Sternau, falls in love with the Spanish duchess, Rosa de Rodriganda. He rushes to Spain when he receives a letter from Rosa, pleading for his help. Soon, Sternau is deeply involved in the affairs of the Rodriganda family. The villainous Cortejo brothers are implementing plans to kill Rosa and her father, as well as her brother in order to seize the wealthy Rodriganda estates in both Spain and Mexico. Dr Sternau resolves to ruin those plans, and to apprehend the villains, which will take him on an odyssey from Spain to Germany, the North Atlantic, South Africa, the West Indies, Mexico, the South Pacific, North Africa, and back to Mexico where he, at last, is able to bring the villains to justice.