How to become an Undercover Pirate...1) Have a pirate captain as your ancient ancestor 2) Find a message in a bottle and a magic gold doubloon 3) Get whisked back in time to join a pirate crew 4) When you get home DON'T TELL ANYONE. Remember - you're undercover! A fearsome encounter with enemy ships leads to a huge sea battle. When the smoke clears, Sam realises Charlie has vanished. Could his crewmate have been kidnapped? It's Sam Silver to the rescue!