The science fiction novel The Invisible Man was written by H. G. Wells. Griffin is an optics researcher who develops a mechanism to change a body's refractive index to that of air so that it neither absorbs nor reflects light. Griffin is the scientist referred to as The Invisible Man in the title. He uses this procedure on himself to turn invisible, but he is powerless to reverse it. The English community of Iping, West Sussex, is visited by a mysterious figure known as "the stranger." He is very introverted, irascible, and withdrawn. He works with various chemicals and lab equipment in his rooms the majority of the day. Former medical student The Invisible Man is an albino who turned away from medicine to focus on optics. He created chemicals that can make bodies invisible, which he initially tested on a cat before using on himself. The Invisible Man kills a bystander while on the run after him after arming himself with an iron rod. He declares that Kemp will be the first person to die during the "Reign of Terror" the next day. The epilogue reveals that Marvel has kept Griffin's papers in secret and has built a prosperous business with the money that was stolen. He cannot understand the Greek and Latin of the coded notes; thus he is unable to interpret them.