Mad Scientists rule the world. Badly.
The title character of the story is Miss Agatha Clay, who begins as a young apprentice to a type of Mad Scientist known to the world as a "Spark". Her adventures span 17 published volumes as of 2018, and that number increases by roughly one volume a year.
Can be found at the Studio Foglio website, accessible through this elegant and finely-crafted link. Please note here, "We recommend Girl Genius for an audience of teens and up". Was also the winner of the Graphic Story Hugo Award for three years running (2009-2011).Fun Fact
There are also novelizations of the comic:
- Agatha H. and the Airship City
- Agatha H. and the Clockwork Princess
- Agatha H. and the Voice of the Castle
- Agatha H. and the Siege of Mechanicsburg
A GURPS adaptation was in the works, but seems to have descended into Development Hell. There is a completed Kickstarter for a mobile game, and one for a tabletop card game crossover between this and Gunnerkrigg Court. It seems like there's also an animation series being developed.
Talk about the comic in our discussion forum for Girl Genius.