Mystery in the Sand

The Alden family is spending their summer vacation in a mobile home on the beach. One morning, Benny discovers a gold necklace in the sand, leading to a mysterious note and a treasure hunt. As they follow a trail of clues, their search for the necklace's owner brings them to Tower House, an unusual old mansion nearby. The Boxcar Children find themselves in the middle of an exciting adventure as they try to uncover the secrets hidden within.