Girl Genius 2: Agatha Heterodyne and the Airship City - Phil and Kaja Foglio

Agatha Clay awakes to discover she is trapped within the nerve center of the scientist/Baron that so recently tried to kill her: a gigantic dirigible. Our hero must play the role of lover/lab assistant to the man that stole her treasured locket (the last remnant from her parents), avoid the wraith of the monstrous Von Pinn, the advances of Gilgamesh Wulfenbach (the Baron's son), and attempt escape, self-discovery, and making friends. This is a delightful tale of, well, as the subtitle reads: "A gaslamp fantasy with adventure, romance & mad science.