Plot summaryThe events are set shortly after the events in The Wonderful Wizard of Oz and after Dorothy Gale's departure back to Kansas. The protagonist of the novel is an orphan boy called Tip. For as long as he can remember, Tip has been under the guardianship of a cruel Wicked Witch named Mombi (who is the main antagonist) and lives in the northern quadrant of Oz called Gillikin Country. Mombi has always been extremely mean and abusive to Tip. As Mombi is returning home one day, Tip plans to get revenge and frighten her with a wooden man he has made, with a large Jack-o'-lantern he carves for a head, thus naming him Jack Pumpkinhead. To Tip's dismay, Mombi is not fooled by this trick, and she takes this opportunity to demonstrate the new magic "Powder of Life" that she had just obtained from another sorcerer. Mombi tells Tip that she intends to transform him into a marble statue to punish him for his mischievous ways.In order to avoid being turned into a marble statue, Tip runs away with Jack that very same night and steals the Powder of Life. He uses it to animate the wooden Sawhorse for Jack to ride. The Sawhorse runs so quickly that Tip is left behind. Walking alone, he meets General Jinjur's all-girl Army of Revolt, which is planning to overthrow the Scarecrow (who has ruled the Emerald City since the end of The Wonderful Wizard of Oz). Meanwhile, Jack and the Sawhorse arrive at the Emerald City and make the acquaintance of His Majesty the Scarecrow. Jinjur and her crew invade the Emerald City, terrorize the citizens, and loot the city, causing great havoc and chaos. Tip joins Jack and the Scarecrow in the palace, and they escape on the Sawhorse's back. .....Lyman Frank Baum ( May 15, 1856 - May 6, 1919) was an American author chiefly famous for his children's books, particularly The Wonderful Wizard of Oz and its sequels. He wrote a total of 14 novels in the Oz series, plus 41 other novels, 83 short stories, over 200 poems, and at least 42 scripts. He made numerous attempts to bring his works to the stage and the nascent medium of film; the 1939 adaptation of the first Oz book would become a landmark of 20th-century cinema. His works anticipated such century-later commonplaces as television, augmented reality, laptop computers (The Master Key), wireless telephones (Tik-Tok of Oz), women in high-risk and action-heavy occupations (Mary Louise in the Country), police corruption and false evidence (Phoebe Daring), and the ubiquity of advertising on clothing (Aunt Jane's Nieces at Work).