The main task of the heroes is to find the treasure. The trader heard the legend of the great treasure buried by the Portuguese party for hundreds of years before the last source tried to find it with the help of a mesmericist. The child was put into a trance and told his mesmerists details about the adventures and death of the unfortunate Portuguese men and women. With many other details, the boy so accurately described the burial of the great treasure and its exact position that the white man and the mesmerist could find the place where he was.