Question: Jinnicky the Red Jinn makes a cameo in which twenty-ninth book by L. Frank Baum and his successors?
Sentence (from "Jinnicky the Red Jinn"): He was reintroduced, drawn, and given the name Jinnicky in "The Purple Prince of Oz"; he also appeared in the follow-up, "The Silver Princess in Oz".
Relevant evidence: No