In the third installment of the Girl Genius novels, Agatha H. and the Voice of the Castle begins as Agatha Heterodyne returns to her ancestral home, the warped

Airships! Imposters! Mad science! Agatha Heterodyne is the last heir to the Maddest of Mad Scientist families, and now she's returning to her ancestral home, th

Agatha must find a way into the bizarre mechanical fortress that is her family's castle, before a charismatic imposter takes her place!

Meet Zesty Tastee, flamboyant gay playboy and heir to the Tastee Corporationfortune. That's what the world knows of him, but Zesty is also Magpie, thecorporate

The Industrial Revolution has escalated into all-out warfare. It has been eighteen years since the Heterodyne Boys, benevolent adventurers and inventors, disapp