The First Men in the Moon by the English author H. G. Wells is a scientific romance about a journey to the Moon by two Englishmen who discover that a sophisticated extraterrestrial civilisation of insect-like creatures ("Selenites") inhabits the lunar interior. The first-person narrator Mr. Bedford, a businessman, recounts his adventure with an eccentric scientist, who has invented a gravity-blocking substance (cavorite) that the pair then use to construct a spherical spacecraft to reach the Moon, hoping to find valuable minerals.