Book #2 in the Nancy Drew Mysteries series.

Filled with suspense, secret passageways, clever puzzle-solving, and Gothic atmosphere, The Hidden Staircase helped establish Nancy Drew as one of the world's most beloved girl detectives.

Nancy Drew has never met a mystery she couldn't resist—but this haunted house may be her most chilling case yet. When elderly sisters Rosemary and Floretta Turnbull become convinced their old mansion home is haunted by mysterious footsteps, unexplained disturbances, and ghostly laughter in the night, young amateur sleuth Nancy Drew suspects there's more to the strange happenings than restless spirits. As she explores hidden staircases, secret rooms, forgotten tunnels, and long-buried clues, Nancy uncovers a dangerous conspiracy designed to frighten the sisters from their home. With her trademark courage, quick thinking, and sharp detective instincts, she must outwit ruthless criminals before the truth disappears into the shadows forever.

Perfect for readers who love girl detective adventures, ghost stories, and Golden Age children's mysteries, The Hidden Staircase remains one of Carolyn Keene's most beloved early Nancy Drew mysteries. A cornerstone of twentieth-century juvenile mystery fiction, this timeless classic is ideal for collectors, libraries, classrooms, homeschool reading lists, young readers, and anyone who enjoys vintage crime fiction, amateur sleuths, clever puzzle-solving, and unforgettable heroines.

If you enjoy this mystery, you'll love Book #3, The Bungalow Mystery. But don't skip reading Book #1, The Secret of the Old Clock, the timeless adventure that launched Carolyn Keene's legendary Nancy Drew Mysteries series!