"Ozma of Oz" by L. Frank Baum is a novel published in 1907. When Dorothy is swept overboard during a storm at sea, she washes ashore in the Land of Ev with a talking hen named Billina. There she encounters menacing Wheelers, a clockwork man called Tik-Tok, and a princess who collects heads. Soon Princess Ozma arrives from Oz on a rescue mission to free Ev's royal family from the Nome King's sinister magic—but the King's challenge threatens to trap them all forever in his underground kingdom.