Ellie's scientist grandfather has discovered a way to reverse aging, and consequently has turned into a teenager--which makes for complicated relationships when he moves in with Ellie and her mother, his daughter.

It is 1943, and 11-year-old Dewey Kerrigan is traveling west on a train to live with her scientist father--but no one will tell her exactly where he is. When she reaches Los Alamos, New Mexico, she learns why: he's working on a top secret government program.

The Queen of Techworld, afraid that Snow White will supplant her as the smartest scientist, exiles the child--but the robots that she repairs save her and help her defeat the evil queen.

Elementary school secret agent Amelia continues her efforts to save the world from evil geniuses and criminal masterminds, this time foiling a jewel thief, identifying some unusual cat burglars, and evading a weed army.