"Godfrey Morgan: A Californian Mystery" by Jules Verne is an 1882 adventure novel by French writer Jules Verne. The novel tells of a wealthy young man, Godfrey Morgan, who, with his instructor, Professor T. Artelett, travels from San Francisco, California, on a round-the-world ocean voyage. They are cast away on an uninhabited Pacific island, where they must endure a series of adversities, much in the vein of Robinson Crusoe.