Supertwins Meet the Dangerous DinoRobots - Scholastic Reader: Level 2 Author:B. J. James, Brian James, Robin Wasserman On a class trip to the museum, Timmy and Tabby notice something strange about the dinosaur exhibit. Lurking behind the walls are the evil Professor Albert and his Dino-bots who are plotting to take over the world! But the Supertwins have their own secret plan to stop the meddling Professor and send his robots into extinction.