Carolyn Keene

The Spider Sapphire Mystery is the forty-fifth volume in the Nancy Drew Mystery Stories series. It was first published in 1968 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams.

The Strange Message in the Parchment is the fifty-fourth volume in the Nancy Drew Mystery Stories series. It was first published in 1974 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams. A sheep farmer receives a mysterious telephone call shortly after he buys a series of …