| # | Book Title | Author | |
|---|---|---|---|
| 1 | Agatha H. and the Airship City | Foglio, Phil | |
| 2 | Agatha H. and the Clockwork Princess | Foglio, Phil | |
| 3 | Agatha H. and the Voice of the Castle | Foglio, Phil | |
| 4 | Agatha H. and the Siege of Mechanicsburg | Foglio, Phil |
Juvenile Series and Sequels