The Wonderful Wizard of Oz by L. Frank Baum

Genre: Middlegrade
 
When Dorothy and her little dog Toto are caught in a tornado, they and their Kansas farmhouse are suddenly transported to Oz, where Munchkins live, monkeys fly and Wicked Witches rule. Desperate to return home, and with the Wicked Witch of the West on their trail, Dorothy and Toto - together with new friends the Tin Woodsman, Scarecrow and cowardly Lion - embark on a fantastic quest along the Yellow Brick Road in search of the Emerald City. There they hope to meet the legendary, all-powerful Wizard of Oz, who alone may hold the power to grant their every wish.