The Dana Girls was a series of mystery books produced by the Stratemeyer Syndicate and published by Grosset & Dunlap until 1979. The Dana Girls series was the brainchild of American author Harriet Stratemeyer Adams, who sought to capitalize on the popularity of both the Nancy Drew and the Hardy Boys books created by her father's syndicate. The first four books were written by Leslie McFarlane who also wrote nineteen of the first twenty-five volumes in the Hardy Boys series. The rest of The Dana Girls books were written by Adams and by Mildred Wirt Benson, who also wrote many of the early volumes in the Nancy Drew series. The series' principal characters are Louise and Jean Dana, teenage orphans who attend the fictional Starhurst School for Girls in Penfield, not far from their hometown of Oak Falls. They are sleuths just like Nancy Drew.