First published in 1907, “Ozma of Oz” is the third book in L. Frank Baum’s Oz series. Dorothy’s story is continued with her beloved companions and given further life with inventive new characters, including a talking yellow hen named Billina; Tiktok, a mechanical man; and the Hungry Tiger, whose conscience prevents him from being the fearsome man-eating tiger he sometimes wishes to be. The tale begins with Dorothy being tossed from a steamship during a storm and finding herself far away from...