 The exact location of the pole is in the crater and Hatteras jumps into it.As the sequence was originally written, Hatteras perishes in the crater; Verne's editor, Jules Hetzel, suggested or rather required that Verne do a rewrite so that Hatteras survives but is driven insane by the intensity of the experience, and after return to England he is put into an asylum for the insane.Losing his "soul" in the cavern of the North Pole, Hatteras never speaks another word.