The Magic of Oz - Lyman Frank Baum - The Magic of Oz is the thirteenth Land of Oz book written by L. Frank Baum. Published on June 7, 1919, one month after the author's death, The Magic of Oz relates the unsuccessful attempt of the Munchkin boy Kiki Aru and former Nome King Ruggedo to conquer Oz.The novel was dedicated to "the Children of our Soldiers, the Americans and their Allies, with unmeasured Pride and Affection."