With the vague hope that it might somehow explain his dream, he took one of his old textbooks from the shelves and tried to read the chapter on lycanthropy. The book cataloged the queerly universal primitive beliefs that human beings could change into dangerous carnivorous animals. He skimmed the list of human wolves and bears and jaguars, human tigers and alligators and sharks, human cats and human leopards and human hyenas. The were-tigers of Malaysia, he read, were believed invulnerable in the transformed