Mystery ranch: The Alden's visit their mysterious Aunt Jane at her run-down ranch and make a surprising discovery! Mike's mystery : A nearby house burns down while the Boxcar Children are staying with their Aunt Jane and their friend Mike is blamed for starting the fire! Blue Bay mystery : The Alden's are excited to visit a deserted South Seas island. But soon they discover clues that they are not alone. Is someone on the island watching them?