| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1991 | 978-0-9630101-0-0 | Roger S. Baum | The Sillyozbuls of Oz |
| 1992 | 978-0-9630101-1-7 | Roger S. Baum | The Sillyozbul of Oz and Toto |
| '' | 978-0-9630101-2-4 | '' | Sillyozbul of Oz and the Magic Merry-G-Round |
| 1996 | 978-0-9630101-4-8 | '' | The Lion of Oz and the Badge of Courage |