chunk: After meeting the Musicker, who produces music from his breath, and fighting off the Scoodlers, who fight by removing their own heads and throwing them at the travellers, Dorothy and her companions reach the edge of the fatal Deadly Desert completely surrounding Oz. There, the Shaggy Man's friend Johnny Dooit builds a "sand-boat" by which they may cross. This is necessary, because physical contact with the desert's sands, as of this book and Ozma of Oz (1907), will turn the travelers to dust.