Bundle up for a frosty winter wonderland adventure. When the weather turns freezing, the Bobbsey family decides to take a spectacular trip to Snow Lodge, a beautiful, cozy resort tucked deep in the snow-covered mountains. Bert, Nan, Flossie, and Freddie cannot wait to strap on their ice skates, build massive snow forts, and even teach their brave dog, Snap, how to pull a real sled through the thick powder. The winter fun is absolutely perfect until a massive blizzard rolls in, completely snowing the family inside the grand lodge. But being trapped indoors does not mean the adventure stops. The twins soon learn a thrilling secret: there is a long-lost fortune hidden somewhere inside the massive, creaky building. With nowhere else to go, the four clever siblings decide it is time to become detectives. Follow along as the children search through dusty rooms, decode hidden messages, and uncover the fascinating history of the snow-bound resort. You will race against the clock alongside the twins as they try to locate the missing treasure before the snow finally melts. This classic mystery combines the magic of a snowy vacation with an exciting puzzle that will keep you completely hooked.