Norby and the Invaders & Norby and the Queen's Necklace

This fourth volume of the complete children''s sci-fi series includes a mission to foil evildoing aliens and a quick trip to eighteenth-century France.Norby and the InvadersJeff Wells and his robot, Norby, must rescue the Grand Dragon of Jamya from strange, blimplike aliens known as the Hleno. Determined to protect the environment from the overuse of technology, the Hleno take Norby and Jeff priso...