In Robert Louis Stevenson's Strange Case of Dr. Jekyll and Mr. Hyde (1886), a lawyer named Mr. Utterson speaks with his friend Richard Enfield about an encounter he had with a repulsive hunchbacked man named Mr. Hyde. Soon Utterson finds that one of his clients, Dr. Jekyll, has written his will, giving all of his property to this strange man. It is revealed that Jekyll and Hyde are in fact one and the same, and that Jekyll has been using a potion he formulated to go between the two personalities.