Policeman Bluejay

Policeman Bluejay is a children's novel written by L. Frank Baum and illustrated by Maginel Wright Enright. First published in 1907, it has been considered one of the best of Baum's works.
Baum published many works — adventure stories, melodramas, and juvenile novels — under pseudonyms; early experience had taught him that he ended up "competing with himself" if he released too much material under his own name.[1] Both The Twinkle Tales and Policeman Bluejay were printed under the pen name "Laura Bancroft" — the only Baum fantasy works published under a pseudonym.