A legendary lost treasure, a mysterious map and a fearless duke who has disappeared. These are the ingredients of a daring adventure in 17th century Europe and the seas crossed by the old merchant ships heading to the East Indies. The young protagonist, Slim, sets sail with his trusty crew to find the treasure of the ancient Kobienki people. However, the unscrupulous Lord Holbein is also on his trail and is determined to stop at nothing to make all that immeasurable wealth his own. An adventurous journey that will lead the protagonist to the remote lands of the East and put him to the test, transforming and forging his temperament. Will he succeed in his intentions and bring his companions home safely?