My Father's Dragon
By Ruth Stiles Gannett; illustrated by Ruth Chrisman Gannett
Young Elmer Elevator journeys to Wild Island and tries to outsmart lions, crocodiles and the other fierce, and sometimes silly, creatures that live there. It's dangerous, but they're holding a baby dragon prisoner, and Elmer will do whatever he can to rescue him.
Random, 1948. ISBN 9780440421214