How many nancy drew books did carolyn keene write?

Carolyn Keene never actually existed. The "Carolyn Keene" name is a pseudonym used by a series of authors who wrote the Nancy Drew books.

The first Nancy Drew book, *The Secret of the Old Clock*, was written by Mildred Wirt Benson. While she wrote the first 23 books in the series, many others contributed throughout the years. Some estimates put the number of authors who have used the "Carolyn Keene" name at over 20.

While there's no singular author with the name "Carolyn Keene," there's a large group of writers who shaped the beloved Nancy Drew series.