<Li> Professione? Spia! (Italian, 1989, ISBN 8804322802) </Li> <Li> スパイ に なりたい ハリエット の いじめ 解決 法 / Supai ni naritai harietto no ijime kaiketsuhō (Japanese, 1995, ISBN 4061947303) </Li> <Li> A Espiã (Portuguese, 1999, ISBN 8571646414) </Li> <P> Fitzhugh wrote two sequels to the book: The Long Secret (1965) and Sport (1979, published posthumously). Both books received mixed reviews . </P>

What is the theme of harriet the spy