The Hidden Staircase is a classic mystery novel that has captivated readers since its publication in 1930. Written by Carolyn Keene, the book is the second in the Nancy Drew series and follows the adventures of teenage detective Nancy Drew as she tries to uncover the secrets of a haunted mansion. The story begins when Nancy is approached by her friend, Helen Corning, who seeks … Continue reading Book Review: The Hidden Staircase by Carolyn Keene (1930)