Keene, Carolyn - Nancy Drew Originals[21] - The Secret in the Old Attic (1944)

Keene, Carolyn - Nancy Drew Originals[22] - The Clue in the Crumbling Wall (1945)

Keene, Carolyn - Nancy Drew Originals[23] - The Mystery of the Tolling Bell (1946)

Keene, Carolyn - Nancy Drew Originals[24] - The Clue in the Old Album (1947)

Keene, Carolyn - Nancy Drew Originals[25] - The Ghost of Blackwood Hall (1948)

Keene, Carolyn - Nancy Drew Originals[26] - The Clue of the Leaning Chimney (1949)

Keene, Carolyn - Nancy Drew Originals[27] - The Secret of the Wooden Lady (1950)

Keene, Carolyn - Nancy Drew Originals[28] - The Clue of the Black Keys (1951)

Keene, Carolyn - Nancy Drew Originals[29] - The Mystery at the Ski Jump (1952)

Keene, Carolyn - Nancy Drew Originals[30] - The Clue of the Velvet Mask (1953)

Keene, Carolyn - Nancy Drew Originals[31] - The Ringmaster's Secret (1953)

Keene, Carolyn - Nancy Drew Originals[32] - The Scarlet Slipper Mystery (1954)

Keene, Carolyn - Nancy Drew Originals[33] - The Witch Tree Symbol (1955)

Keene, Carolyn - Nancy Drew Originals[34] - The Hidden Window Mystery (1956)