Ruth Plumly Thompson

The Royal Book of Oz Ruth Plumly Thompson Illustrated edition

the Scarecrow discovers that, in a previous incarnation, he was human. More specifically, he was the Emperor of the Silver Islands, a kingdom located deep underground beneath the Munchkin region of Oz, inhabited by people who resemble Chinamen. When Dorothy first discovered the Scarecrow (in The Wonderful Wizard of Oz) he was hanging from a beanpole in a cornfield; it now develops that this pole descends deep underground to the Silver Islands. The Emperor of the Silver Islands had been transformed into a crocus by an enemy magician; this magical crocus had sprouted and grown into the beanpole all the way up to the surface of the earth. When the farmer placed his scarecrow on the beanpole, the spirit of the transformed Emperor entered the Scarecrow's body, causing him to come to life.