Anticipating nothing but fun during spring break at the Space Academy, Jeff Wells and his robot, Norby, prepare to visit their friend Pera, but their plans are disrupted when Pera is attacked by an evil court jester.
Janet Asimov (maiden name Janet Opal Jeppson, born 1926) is an American science fiction author, psychiatrist, and a psychoanalyst.
Janet Asimov started writing children's science fiction under the name J. O. Jeppson in the 1970s. She was married to Isaac Asimov from 1973 until his death in 1992, and they collaborated on a number of science fiction books aimed at young readers, including the Norby series.
Janet Asimov. Wikipedia.