Classical authors attempted both to describe and to explain the function of the evil eye. Plutarch's scientific explanation stated that the eyes were the chief, if not sole, source of the deadly rays that were supposed to spring up like poisoned darts from the inner recesses of a person possessing the evil eye. Plutarch treated the phenomenon of the evil eye as something seemingly inexplicable that is a source of wonder and cause of incredulity. Pliny the Elder described the ability of certain African enchanters to have the "power of fascination with the eyes and can even kill those on whom they fix their gaze".