"Frank and Andy on the Waves: or, Cave on the Island" is an exciting book by the author Vance Barnum. This exciting adventure book tells the story of two boys who decide to go on an exciting trip to the sea. During their journey, they discover a mysterious cave on the island and begin to explore it and explore its secrets. Readers will experience every moment with the characters and feel as if they themselves will become a part of this exciting adventure. "Frank and Andy on the Waves: or, Cave on the Island" is a book that will grab you from the first lines and won't let you go until the last page.