In the second book of this children’s series (Norby’s Other Secret, 1984), the precocious robot reveals his time-travel powers to his pal Jeff; their mishaps in time continue in at least three later books (Norby and the Queen’s Necklace, Norby Finds a Villain, and Norby and Yobo’s Great Adventure).

Variants

(1)
  1. Norby by Janet Asimov and Isaac Asimov (1984).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Janet Asimov