Jessica Plunkenstein and the Düsseldorf Conspiracy
From author's description: It's been a peculiar day for Jessica Plunkenstein. By a freak twist of fate and airline security, our heroine finds herself battling evil barons bent on world domination, evil headmistresses bent on pathological propriety, and evil yodelers bent on nothing in particular. Full of llamas, ninjas, French people, pickled herring, dubious German accents, yetis in heat, and musical theatre up the wazoo, Jessica's adventures bring her from the Amazonian Rain Forests to the Norwegian Alps with layovers along the Eastern seaboard. So tag along, and you, too, can unravel The Düsseldorf Conspiracy in what the New York Times calls the Best Adventure Game of 2005!