Asimov, Janet

Jeff Wells leaves the space academy with his mixed-up robot Norby and the two of them head back to Earth to help Jeff's brother unravel a mystery involving zapped robots and stolen computer parts.

Jeff Wells, a Space Academy student, and Norby, a second-hand robot with unusual abilities, find themselves involved in the sinister plans of Ing the Ingrate, who intends to take over the universe.

When Jeff and his robot Norby accompany Admiral Yobo to prehistoric times so the admiral can do family research, the trip turns into a dangerous adventure.

Twelve-year-old Ginnela and her younger brother Pete find themselves trapped on a disabled spaceship and must figure out how to survive.

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.

Jeff and Norby travel to Earth where a Manhattan taxi with a robot brain helps them investigate Garc the Great's connection with Computer Prime.

Norby the robot and his friend Jeff travel to the distant planet of Izz and help to rescue a lost princess.

Jeff Wells and his personal robot Norby find adventure when they travel to planet Jamyn and attend the Grand Dragon's birthday party.