L. Frank Baum 
The Scarecrow of Oz [EPUB ebook] 

The Scarecrow of Oz is the ninth Oz book. In this story, Trot, a young girl from California, and her peg-legged sailor friend, Cap’n Bill, find themselves on a perilous voyage when a whirlpool leaves them stranded in an underwater cave. There they are befriended by a most curious creature — the Ork. With four paddle-like wings, legs like a stork’s, a parrot’s head, and a tail like a propeller, the Ork proves to be a very welcome and helpful companion.