J. C Greenburg

Andrew, Judy, and Thudd have escaped primordial Earth only to find themselves surrounded by huge–and hungry!–dinosaurs. Meanwhile Uncle Al is still stranded in the Ice Age. Somehow Andrew, Judy, and Thudd must fix their time machine and rescue Uncle Al–before he becomes a human ice cube! Kids, parents, and teachers love this series–kids for all its gooey grossness, and teachers and parents for all the fun science and great...

ANDREW, JUDY, AND Thudd are still the size of insects. Andrew has invented special bug suits to protect them. But the suits won’t help much when they get lost in a pond full of frogs that love to eat bugs! They come face-to-face with fierce larvae, giant waterbugs, diving beetles, and socalled moss animals that look like floating brains. Will Andrew, Judy, and Thudd find their way out of the pond . . . before they croak? Another exciting and...

The evil Dr. Kron-Tox has kidnapped Uncle Al and whisked him away in his time machine! Luckily, Andrew has a time machine of his own. But like most of Andrew’s inventions, the Time-a-Tron doesn’t work quite right. It tumbles Andrew, Judy, and Thudd back to the very beginning of the universe! Will they regain control of the Time-a-Tron in time to save Uncle Al . . . and themselves?
J. C. Greenburg is the author of many books for young...

After being shrunk by a shrinking machine, Alexander, his cousin Judy, and Thudd the robot encounter drain flies, a cockroach, and worse as they work their way through Mrs. Scuttle's house toward safety.

While trying to recover from their accidental underwater adventure, Andrew, his cousin Judy, and Thudd the robot are swallowed by a blue whale, the world's largest creature.