Nancy Drew must use clues in a dead man's letters to find some unpublished musical manuscripts that will save an old man and his granddaughter from financial ruin.

Nancy Drew tries to find a clue to the strange tapping sounds in the house of a retired actress.

While trying to locate a missing dancer who is about to gain a large inheritance, Nancy Drew finds a clue leading to the solution of yet another mystery.

Nancy Drew sets out to prove that her father's client was unjustly accused of trying to sabotage the United States space program.

Nancy Drew determines whether an ivory elephant charm really protects its wearer from harm when she investigates the involvement of a member of the Bengleton Wild-Animal Show in a mysterious scheme.

Once again Nancy Drew is involved in a mystery as she tries to locate an archaeologist who disappeared with the clues to a buried treasure.