Herbert George Wells, known primarily as H. G. Wells, was a prolific English writer in many genres, including the novel, history, politics, and social commentary, and textbooks and rules for war games.
Dr. Jack Griffin is a man who has discovered a potion that can turn a man invisible, and drinks it himself. What he didn't factor, was due to the secret ingredient that makes the potion work, also makes a man go completely mad. So, while trying to find a cure, Griffin finds the various benefits of being invisible and takes advantage of them.