Carolyn Keene

Blue bells will be singing horses! This strange message, attached to the leg of a wounded homing pigeon, involves Nancy Drew in a dangerous mission. Somewhere an elderly woman is being held prisoner in a mansion, and Nancy is determined to find and free her. Meanwhile, the young detective’s close friend, Helen, begs …

The Phantom of Pine Hill is the forty-second volume in the Nancy Drew Mystery Stories series. It was first published in 1965 under the pseudonym Carolyn Keene. The actual author was ghostwriter Harriet Stratemeyer Adams.