Mystery up the winding stair

Pages: 120
Published: 1948
Language: English

While his parents are away, young Harry stays with his grandfather in a grand mansion that holds a secret. His grandfather challenges Harry and his cousins to find a hidden treasure: a set of Paul Revere spoons and a diamond. A sudden blizzard traps them inside, and they soon discover they are not alone; an intruder is also after the valuable treasure.