| 
by L. Frank BaumPaperback details (USA). details (UK). details (Germany). details (Canada). ISBN: 978-1-4219-2021-4 ISBN-10: 1-4219-2021-2 IndyPublish · 2005  | 
| See also (possibly by other authors): | ||
| 2007 | Paperback | The Master Key (New Edition) | 
| 2007 | Paperback | The Master Key | 
| 2005 | Paperback | The Master Key (1914) | 
| 2002 | VHS Tape | The Master Key [VHS] | 
| 1985 | Paperback | The Master Key (King Penguin S.) |