The Secret of the Old Clock is the first volume in the Nancy Drew Mystery Stories series, written under the pseudonym Carolyn Keene. It was first published on April 28, 1930, and rewritten in 1959 by Harriet Stratemeyer Adams.
The Mystery at Lilac Inn is the fourth volume in the Nancy Drew Mystery Stories series. It was first published in 1930 under the pseudonym Carolyn Keene. Mildred Wirt Benson was the ghostwriter of the 1930 edition.
The Secret at Shadow Ranch is the fifth volume in the Nancy Drew Mystery Stories series. It was first published in 1931 under the pseudonym Carolyn Keene, and was ghostwritten by Mildred Wirt Benson. This book, as of 2001, ranks 50 on the list of All-Time Bestselling Children's Books, according to Publishers Weekly, with 2,347,750 sales since 1931.
The Secret of Red Gate Farm is the sixth volume in the Nancy Drew Mystery Stories series, written under the pseudonym Carolyn Keene, It was first published in 1931.
The Clue in the Diary is the seventh volume in the Nancy Drew Mystery Stories series, and was first published in 1932 under the pseudonym Carolyn Keene. Its text was revised in 1962.
Nancy's Mysterious Letter is the eighth volume in the Nancy Drew Mystery Stories series. It was first published in 1932 and was penned by Walter Karig, a replacement writer for Mildred Wirt Benson. Benson declined series work when the Depression forced a reduction in the contract fee provided to Stratemeyer Syndicate writers, so Karig, already an established Stratemeyer writer, took over the authorship. Due to Karig having died in 1956, the 1932 version passed into the public domain in Canada and other countries that have a life plus 50 policy, in 2007.
The Clue of the Velvet Mask is the thirtieth volume in the original Nancy Drew Mystery Stories series. It was Mildred Benson's final ghostwrite for the series. The plot and story take place largely in Nancy's hometown of River Heights. Nancy tries to solve a mystery about a gang of event thieves robbing homes during parties, lectures, musicals, and other social occasions planned or catered by Lightner's Entertainment Company. Much of the original story contains elements of dramatic crime dramas; the villains are darker in tone than many other entries in the series.
The Password to Larkspur Lane is the tenth volume in the Nancy Drew Mystery Stories series. It was first published in 1933 under the pseudonym Carolyn Keene. The actual author was ghostwriter Walter Karig in his third and final Nancy Drew novel and his final appearance for the Stratemeyer Syndicate. Due to Karig's death in 1956, this book and his other two Nancy Drews, as of January 1, 2007, have passed into the public domain in Canada and other countries with a life-plus-50 policy.
The Clue of the Broken Locket is the eleventh volume in the Nancy Drew Mystery Stories series. It was first published in 1934 and was written by Mildred Benson under the pseudonym Carolyn Keene. It was later revised by Harriet Stratemeyer in 1965, and the story was mostly changed with a few elements of the original.
The Whispering Statue is the fourteenth volume in the Nancy Drew Mystery Stories series. It was written by Mildred Wirt Benson, whom many readers and scholars consider the "truest" of the numerous Carolyn Keene ghostwriters, following an outline by Harriet Stratemeyer. The book was originally published by Grosset & Dunlap in 1937. An updated, revised, and largely different story was published under the same title in 1970.
The Clue of the Tapping Heels is the 16th volume in the Nancy Drew Mystery Stories series. It was first published in 1939. An updated, revised, and largely different story was published under the same title in 1970. A facsimile edition of the 1939 version was published by Applewood Books. As of 2006, this title is still in print.
The Mystery of the Ivory Charm is the thirteenth volume in the Nancy Drew Mystery Stories series. It was first published in 1936 under the pseudonym Carolyn Keene. The actual author was ghostwriter Mildred Wirt Benson.
The Mystery at the Moss-Covered Mansion is the eighteenth volume in the Nancy Drew Mystery Stories series published by Grosset & Dunlap, and was first published in 1941. The original text was written by ghostwriter Mildred Wirt Benson, based upon a plot outline from Stratemeyer Syndicate co-owner Harriet Stratemeyer Adams. The book's title was changed to Mystery of the Moss-Covered Mansion when it was revised in 1971, because the story is completely different and not much of the investigation takes place at the title location. In the original, many plots and much investigation all tie back to the same house deep in the forest, while Nancy helps her father locate an heiress, expose an impostor, investigate a murder, and look into strange screams at the mansion; none of the action in the original story took place in River Heights.
The Secret in the Old Attic is the twenty-first volume in the Nancy Drew Mystery Stories series. It was first published in 1944 under the pseudonym Carolyn Keene. The actual author was ghostwriter Mildred Wirt Benson.
The Clue in the Crumbling Wall is the twenty-second volume in the Nancy Drew Mystery Stories series. It was first published in 1945 under Carolyn Keene, a pseudonym of the ghostwriter Mildred Wirt Benson.
The Secret of the Wooden Lady is the twenty-seventh volume in the Nancy Drew Mystery Stories series. It was first published in 1950 under the pseudonym Carolyn Keene. The actual author was ghostwriter Margaret Scherf.
The Clue of the Dancing Puppet is the thirty-ninth volume in the Nancy Drew Mystery Stories series. It was first published in 1962 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams.
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.
The Sky Phantom is the fifty-third volume in the Nancy Drew Mystery Stories series. It was first published in 1976 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams.
The Greek Symbol Mystery is the 60th volume in the Nancy Drew Mystery Stories series. It was originally published in paperback in 1981 by the Wanderer imprint of Simon and Schuster. The original edition had a cover and six interior illustrations by Ruth Sanderson. The cover art was later revised by Garin Baker in 1986 for the last Wanderer printing, and again by Linda Thomas in 1989 for the Minstrel printing.
