Rescued from a deserted Caribbean island, 17-year-old Robinson Crusoe and his female friend, Friday, find themselves in late 1600s London, a bustling city that proves as treacherous for them to navigate as the remote island they just left behind. Thanks to their honed survival skills, Crusoe and Friday are recruited by a young writer named Daniel Defoe to work as agents for Segment W, a covert spy group that reports directly to the Crown. Crusoe, Friday, and Defoe must rescue the Countess of Lichfield from a kidnapping plot. They are shocked to discover that a mystical and mysterious organization known as the Circle of Thirteen is behind the kidnapping. With an illustrious cast of historical characters including King Charles II and Sir Isaac Newton, Crusoe thrusts the reader and its young heroes into a world of espionage, intrigue, and peril at the dawn of the spy age.