Carolyn Keene

The Mystery At Lilac Inn is the fourth volume in the Nancy Drew Mystery Stories series. It was first published in 1931 under the pseudonym Carolyn Keene. Mildred Wirt Benson was the ghostwriter for the 1931 edition. In 1961, Harriet Stratemeyer Adams extensively revised the novel, creating a completely different …

The Mystery at the Ski Jump is the twenty-ninth volume in the Nancy Drew Mystery Stories series. It was first published in 1952 under the pseudonym Carolyn Keene. The actual author was ghostwriter Alma Sasse.

The Mystery of the 99 Steps is the forty-third volume in the Nancy Drew Mystery Stories series. It was first published in 1966 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams.