| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| The Butterfly Clues | Audio CD | 978-1-4558-9401-7 | 2012 |
| The Butterfly Clues | " | 978-1-4558-9402-4 | 2012 |
| The Butterfly Clues | MP3 CD | 978-1-4558-9403-1 | 2012 |
| The Butterfly Clues | " | 978-1-4558-9404-8 | 2012 |
| The Butterfly Clues | Hardcover | 978-1-60684-263-8 | 2012 |
Kathy Elgin · Kathy Ellison · Keith Elkin · Keith Ellison · Keith Elson