chunk: Griffin's furious attempt to avenge his betrayal leads to his being shot. He takes shelter in a nearby house that turns out to belong to Dr. Kemp, a former acquaintance from medical school. To Kemp, he reveals his true identity: the Invisible Man is Griffin, a former medical student who left medicine to devote himself to optics. Griffin recounts how he invented chemicals capable of rendering bodies invisible, and, on impulse, performed the procedure on himself.