"Ranson's Madness" is an exciting book by the American writer Richard Harding Davis, which transports the reader to the world of mysterious adventures. The main character, rich aristocrat George Ranson, decides to build a castle on one of the islands in the middle of the river. This idea saves the hero from routine life and opens up incredible opportunities for him. However, an abandoned building on the island has secrets of its own that could jeopardize everything Ranson has created. Can he solve all the puzzles and survive in this troubled world? "Ranson's Madness" is not only an exciting adventure story, but also a skillfully presented world of morality and inner development of the main character.