In a period when the Industrial Revolution has escalated into all-out warfare, Mad Science tips the world… with blended success. With the help of Krosp, Emperor of All Cats, Agatha has escaped from your massive airship referred to as Castle Wulfenbach. After crashing their escape dirigible, Agatha and Krosp fall in with Expert Payne’s Circus of Adventure, a touring troupe of performers focused on staging Heterodyne displays – dramatizations from the exploits of Bill and Barry Heterodyne and their allies about Agatha H. as well as the Clockwork Princess – who are unaware of Agatha’s connection to the Heterodyne series. Pursued by the ruthless Baron Klaus Wulfenbach, his handsome boy Gil, and their minions (not forgetting Othar Tryggvassen, Gentleman Adventurer), Agatha hides in plain view among the circus folk, servicing their clanks and proving herself adept in carrying out the part of Lucrezia Mongfish, nemesis to – and afterwards wife of – Barry Heterodyne. She also starts teaching under Zeetha, swordmistress and princess of the dropped city of Skifander . Collectively, Agatha, Krosp, as well as the performers travel across the treacherous Wasteland of war-torn Europa, towards Mechanicsburg, and the ancestral house from the Heterodynes – Castle Heterodyne. But numerous perils standing up in her method – including Wulfenbach’s split troops, mysterious Geisterdamen, savage Jägermonsters, as well as the fabled Storm King – it’s going to take more than a spark of Mad Research for Agatha to complete… From Phil and Kaja Foglio, makers of the multiple WCCA and Hugo Award-winning webcomic Female Genius, comes Agatha H and the Clockwork Princess, a gaslamp dream loaded to bursting with Experience! Romance! And Mad Technology!