L. Frank Baum,
Tik-Tok of Oz
(1914)
“ Polychrome looked from one to another of the queer party of travelers and a bewitching smile suddenly lighted her face."A donkey, a mortal maid, a Rose Princess and a Shaggy Man!" she exclaimed. "Surely you need help, if you intend to face Ruggedo.""Do you know him, then?" inquired Betsy."No, indeed. Ruggedo's caverns are beneath the earth's surface, where no Rainbow can ever penetrate. But I've heard of the Metal Monarch. He is also called the Nome King, you know, and he has made trouble for a good many people —mortals and fairies—in his time," said Polychrome. ”

