The Foglios are working on a novelization of the Girl Genius story so far. The novels start following the plot of the original comic quite closely, but as they proceed, some differences and expansions have crept in, and a great deal of additional information about Agatha's Europa has been included, often in the form of footnotes. As of the 2025, the published novels have covered events as far as the breaking of the Siege of Mechanicsburg.
The authors have read selections from the novels at the cons they have attended.
A table showing the relationship between the novels and the comics can be found in the Chronology.
The novels were originally published in the US by Night Shade Press, but that company was hit with repeated accusations of financial improprieties, and its catalogue of novels is now being distributed by Skyhorse Publishing. After evidently much struggle, in 2025 the Foglios have reported on their Patreon page that they have regained the publishing rights for the GG novels, and hope to bring them back into print with some sort of self-publishing scheme, putting out revised editions of the first four novels and producing one or two new ones as well. Conversely, Phil has also announced on his Bluesky account that some sort of (ahem) "discussions" with the Night Shade/Skyhorse people are still ongoing, and that in the meantime he has already written book #5, "The City of Lightning" and is working on #6, "Her Undying Majesty".
The novels[]
Currently consist of:
- Agatha H. and the Airship City, published in January 2011.
- Agatha H. and the Clockwork Princess, published in April 2012.
- Agatha H. and the Voice of the Castle, published November 2014.
- Agatha H. and the Siege of Mechanicsburg, published March 2020.