The Vienna 707 was a [ "walking gunboat"] [[Chronology - Volume #|✣ ]] in the service of Duke D'Omas, and may or may not actually have anything to do with the city. It was crewed by Moloch von Zinzer and his brothers. In The Future, Agatha apparently has some interest in seeing who else survived. The Vienna 707 was armed with several cannons, although whether these were death ray weapons or conventional projectile artillery has yet to be determined. It had a figurehead.