Zombie
Wade Davis wrote about zombies in two books, The Serpent and the Rainbow (1985) and Passage of Darkness: The Ethnobiology of the Haitian Zombie (1988). Davis went to Haiti in 1982 and wrote about how a living person can be turned into a zombie by two special powders being rubbed into a wound. The first powder brings a 'deathlike' state because of a certain poison in it, called tetrodotoxin (the same deadly poison found in the Japanese blowfish). At just the right amount, it can make a person almost die, but not quite. The second powder puts the person in a zombie-like state where they seem to have no free will of their own.