"Tik-Tok of Oz" by L. Frank Baum is a novel published in 1914. The eighth book in the Oz series follows the Shaggy Man on a quest to rescue his brother from the Nome King's underground kingdom. Along the way, he joins forces with shipwrecked Betsy Bobbin, her mule Hank, a Rose Princess, and an ambitious queen seeking conquest. Their journey through magical lands leads to confrontations with the Nome King and unexpected alliances that will determine who rules the underground realm.