Carolyn Keene

By mistake Nancy Drew receives a letter from England intended for an heiress, also named Nancy Drew. When Nancy undertakes a search for the missing young woman, it becomes obvious that a ruthless, dangerous man is determined to prevent her from finding the heiress or himself. Clues that Nancy unearths lead her to …

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.