The four Alden children and their new friend Lars uncover a mystery during a trip to an island in the South Seas. The Boxcar Children are taking a vacation on an uninhabited South Seas island. They soon suspect someone else is there too, someone who may not want them around!

While on a bicycle trip to their aunt's farm, the four Aldens help solve a mystery. One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from. Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather and are going on a bicycle trip. On the first night of their journey, the Boxcar Children get caught in a rainstorm. They find shelter in an...

"Siblings Henry, Jessie, Violet, and Benny used to live in a boxcar. Now they have adventures everywhere they go. What secrets will the children find on their very own island?"--