The Purchase of the North Pole or is an adventure novel by Jules Verne, published in 1889. This novel continues the story of the Baltimore Gun Club. The group of heroes first appeared in From the Earth to the Moon and later in Around the Moon. It features the same characters but is set twenty years later. In his later books, Verne tempers his love of science and engineering and adds a good dose of irony about their potential for harmful abuse and the fallibility of human endeavors. This book is a great exemplar of this philosophy.