H. G. Wells"s "The Invisible Man" is considered to be one of the greatest science fiction stories ever written. It is the story of the scientist Griffen who discovers a serum that will turn his entire body invisible. The initial excitement over the possibilities quickly dissipates when Griffen, who uses the formula on himself, is unable to turn himself visible again. "The Invisible Man" is a cautionary tale about tampering with the laws of the universe. It is the story of how one scientist"s great discovery leads him into a state of madness.