 In the U.S. it ranked number 12 in The 50 Best Books for Kids and number 17 in The Top 100 Children's Novels on two lists generated in 2012.It was followed by two sequels or "companion books", "The Long Secret" (1965) and "Sport" (1979).In 1964, eleven-year-old Harriet M. Welsch is an aspiring writer who lives in New York City's Upper East Side.