| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Girl Genius Volume 5: Agatha Heterodyne & The Clockwork Princess | Paperback | 978-1-890856-39-7 | 2013 | Phil Foglio · Kaja Foglio |
| Girl Genius Volume 6: Agatha Heterodyne And The Golden Trilobite | " | 978-1-890856-23-6 | 2009 | Kaja Foglio |
| Girl Genius Volume 7: Agatha Heterodyne and the Voice of the Castle | " | 978-1-890856-45-8 | 2011 | Kaja Foglio · Phil Foglio |
| Girl Genius Volume 7: Agatha Heterodyne and the Voice of the Castle | Hardcover | 978-1-890856-46-5 | 2008 | Kaja Foglio · Phil Foglio |
| Girl Genius Volume 8: Agatha Heterodyne and the Chapel of Bones | Paperback | 978-1-890856-47-2 | 2009 | Kaja Foglio · Phil Foglio |