"Island In The Swamp" is one of my favorites. Bret ends up in bayou country, tied up and set adrift in a boat. Arlene Howell is Ladybird. Sister Victoria is the shy one. The local boys do not care for Bret. They have a secret. They are trading salvaged goods from a wrecked ship. Ladybird learns to read, and Victoria runs off with a Cajun.