Robinson Crusoe by Kei Bailey
Robinson lives in a little seaside town called Much-Piddling-by-the-Sea with his mother, Ma Crusoe, and his brother, Billy. The family are skint and are up to their neck in debt, so when the kindly Fairy Marina gives Robinson a treasure map, the Crusoe family waste no time in setting off on a voyage to find the island where X marks the spot. However, also in hot pursuit of the treasure is Captain Kilkraken, a wicked pirate queen who sails the Seven Seas with her dastardly all-female crew. What lengths will the pirates go to get their hands on the booty?