Oliver and Nathan, determined to get to the bottom of their new homeroom teacher's fishy behavior, discover Mr. Aidact is actually an AI robot from a secret experimental program.

Amelia, a young secret agent, investigates some robotic animals, an enchanting music teacher, and a pair of remarkably beautiful twin bakers with a dastardly plot, all while avoiding her nemesis, Trudy Hart.

When twelve-year-old Hugo, an orphan living and repairing clocks within the walls of a Paris train station in 1931, meets a mysterious toyseller and his goddaughter, his undercover life and his biggest secret are jeopardized.

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.

Kat is reluctant to visit her Uncle Vic Frankenstein because of all the rumors about him. People in the small town where he lives say he's a mad scientist like his great-grandfather, Victor Frankenstein, who created a monster that came alive and terrorized the town. But Kat is relieved to find that even though he lives in a dark, old castle-like mansion, Uncle Vic is a quiet, gentle man, a scientist interested in building robots with artificial intelligence....

The mouselings are headed on a fabumouse mission-- to the moon! After much preparation, the mice blast off. But when they arrive at their lunar vacation spot, things start to go wrong, including spaceship wrecks and rebellious robots. Can the Thea sisters save the day?