"You know," Agatha said aloud, "for all the Heterodyne Boys tales, and the stories we have of Sparks creating great things, and then everyone having to deal with them, very few of those inventions seem to last past their creation. Except for the Jaegerdraft."

"Ho, dat's eazy to answer," Dimo said, grinning, "because de Barons always wuz engineers before they wuz Sparks."