Get ready for a wonderful summer in the country. The Bobbsey twins, Bert, Nan, Flossie, and Freddie, are packing their bags and heading to their cousin Harry's beautiful farm at Meadow Brook. After a long train ride filled with funny mishaps, the two sets of twins are ready to explore the wide open fields, play near the sparkling river, and enjoy all the fun of country life. But life at Meadow Brook is not just about picnics and playing in the sunshine. As the curious siblings begin to explore the sprawling farm, they quickly discover that strange things are happening around the property. From puzzling clues hidden in the barn to surprising nighttime noises, the four children realize they have a brand new mystery to solve. Working together as a team, the older twins use their clever minds while the younger twins stumble into their own funny discoveries. You will follow along as they gather clues, help their family, and try to figure out exactly what is going on at the farm. Filled with outdoor adventures, lovable pets, and a secret waiting to be uncovered, this classic story shows how much fun you can have when you share an adventure with your family.