Norby's other secret

By Isaac Asimov, Janet Asimov

Subjects: Science fiction, Children's stories, American, Fiction, Children's fiction, Norby the robot (fictitious character), fiction, Robots, fiction, Robots, Wells, jeff (fictitious character), fiction

Description: When unscrupulous scientists try to kidnap Norby in order to learn the secret of the robot's anti-gravitational capabilities, he and Jeff discover on the dragon-inhabited planet Jamya the key to an even more precious secret.