This is the story of Charles Cooper a 17 years old teenager who lives in Cambridge with his family. One day, while trying to move a rock in garden woth his father, ther find a box with a map inside belonging to a slave who was on the ship "Royal Merchant" containing gold wich have a value of 400 millions dollards. Following this discovery, Charles Cooper goes in search of the "Royal Merchant" with his father in the hope of finding this famous ship that has been missing for several centuries.