'Gentleman Captain' is the first in a series of naval adventure books set in the seventeenth century. Charles II has been restored to the English throne for one year. He presides over a court swirling with intrigue, where friends and enemies mingle and conspire. The hero, 22-year-old Matthew Quinton, is from a family loyal to the monarch. Pressed from time and facing evidence of yet another plot against his person, the king gives Quinton command of a ship and tasks him with a delicate mission: to sail to the western isles of Scotland, intercept a cargo of weapons destined for the king's sworn enemies, and blow the conspiracy apart.