Question: What is the publishing date of this novel by Ruth Plumly Thompson, originally written in 1959, and featuring Jinnicky the Red Jinn as a principal pre-existing character?
Sentence (from "Jinnicky the Red Jinn"): Jack Snow apparently thought the Red Jinn was a separate character, for he considered "The Purple Prince of Oz" Jinnicky's first appearance in "Who's Who in Oz", though he did not include a separate Red Jinn entry.
Relevant evidence: No