Probal Dip is an adventure and fiction type novel written By Robert Michael Ballantyne. The main characters of the story are three teenagers. Jack Martin, Rafael Rover, and Peterkin Gay. All of them are trapped on a deserted island in the South Pacific when the ship sails. Then the story goes on. Three teenagers were living happily on a deserted island. So most of the fun is deprived. The poor can not see the fish as they can not go hunting for the bottom of the sea. However, the danger was not too late. The book seems to have been written based on facts. Yet, another new edition has been added to my list of favorite books.