In a time when the Industrial Revolution has become an all-out war, Mad Science rules the World... with mixed success. Agatha is the last of the Heterodynes-a notorious family of Mad Scientists that everyone had thought safely wiped out. Now, the ancestral city of the Heterodynes has been trapped in a bubble of stopped time, and Agatha is on a journey to find a way to reverse the effect and save the people she loves. In this volume, Agatha may finally have a chance to relax! That is, as long as her evening at Queen Albia's ball isn't interrupted by too many odd surprised or party-crashing monsters. Old friends, new troubles, and weird fashions abound as Agatha navigates the royal court of Londinum as only a madgirl can!