No fable in this century has captured the American imagination more than L. Frank Baum's The Wizard of Oz. In Visitors from Oz, Martin Gardner, venerable storyteller and author of the bestselling The Annotated Alice, has written a delightful sequel to the Oz legend.For all who maintain that Oz was but a dream and that Dorothy returned, happy ever after, to Kansas, Gardner proves them wrong, for in Visitors from Oz, Dorothy, the Tin Woodman, and the Scarecrow return to Earth. Their visit quickly goes awry, as hideous gangsters in New York City attempt to kidnap Dorothy to prove she's an impostor and to kill her faithful companions. Combining mathematical riddles with technological pyrotechnics and vivid suspense, Martin Gardner has created a new fable celebrating the power of the imagination and the lure of an ageless heroine named Dorothy from the turn of the century.