question: A Wish Way is a device that appears in three of the Oz books of Ruth Plumly Thompson, one being The Lost King of Oz, released in which year, and is the nineteenth in the series of Oz books?
answer: 1925
context: Title: Peter Brown (Oz)
  Passage: Peter Brown is a major character in the Oz novels of Ruth Plumly Thompson, who continued the series of Oz books after the death of their creator, L. Frank Baum.  Thompson used Peter as the protagonist in three of her books: "The Gnome King of Oz" (1927), "Jack Pumpkinhead of Oz" (1929), and "Pirates in Oz" (1931).
  Title: The Lost King of Oz
  Passage: The Lost King of Oz (1925) is the nineteenth in the series of Oz books created by L. Frank Baum and his successors, and the fifth written by Ruth Plumly Thompson.  It was Illustrated by John R. Neill.
  Title: Wish Way
  Passage: A Wish Way is a device that appears in three of the Oz books of Ruth Plumly Thompson, "The Royal Book of Oz", "The Hungry Tiger of Oz", and "The Lost King of Oz".  Two Wish Ways are found in distinctly different locations, both in the Winkie Country.
  Title: The Wishing Horse of Oz
  Passage: The Wishing Horse of Oz (1935) is the twenty-ninth in the series of Oz books created by L. Frank Baum and his successors, and the fifteenth written by Ruth Plumly Thompson.  It was Illustrated by John R. Neill.  This book marked the point at which Thompson had written more Oz books than Baum himself.
  Title: List of published Oz apocrypha
  Passage: This page is a supplement to List of Oz books featuring published books, often by small publishing houses.  Their canonicity is up to the individual reader, with some purists considering them apocryphal.  As the Baum Oz books are in the public domain, no clearance needs to be obtained to write and publish fiction about the Oz characters, professionally or otherwise, making the question of canonicity somewhat subjective.  Additionally, both of Jack Snow's Oz books are in the public domain in the United States, as are Ruth Plumly Thompson's "The Royal Book of Oz", "Kabumpo in Oz", "The Wishing Horse of Oz", "Captain Salt in Oz", "Handy Mandy in Oz", "The Silver Princess in Oz", and "Ozoplaning with the Wizard of Oz", making the distinctive elements in those books usable as public domain content.  The most dramatic changes in her books are in "The Lost King of Oz" and "The Giant Horse of Oz", both of which remain protected under U.S. copyright law, and has rendered some known manuscripts unpublishable.  The Oz books of John R. Neill, Rachel R. Cosgrove, and Eloise Jarvis McGraw and her daughter Lauren are all protected under U.S. copyright, making their characters and developments unusable by others without permission.
citations: The Lost King of Oz Wish Way