A cyclone lifts a Kansas farmhouse into the sky and sets it down in the Land of Oz, killing a wicked witch beneath it and leaving young Dorothy and her dog Toto stranded in a country of talking scarecrows, mechanical woodmen, and dangerous magic. Told that only the great Wizard in the distant Emerald City can send her home, Dorothy sets out along a road of yellow brick.
Along the way she gathers companions who each believe they lack something essential: a Scarecrow convinced he has no brains, a Tin Woodman certain he has no heart, and a Cowardly Lion who wants courage. Together they cross poppy fields, forests, and the territory of the Wicked Witch of the West, whose defeat becomes the price of the Wizard's help.
L. Frank Baum wrote the book explicitly as an American fairy tale, stripped of the grimmer moralizing of older European tales. Its plain, direct prose and inventive geography made it an immediate bestseller on publication in 1900 and the first in a long series of Oz books. Beneath the adventure is a gentle argument that the qualities its characters chase were theirs all along.