Now, turn to your atlases again and look for the large island of Gotland off the southeastern coast of Sweden, in the midst of the Baltic Sea. In the time of Olaf it was a thickly peopled and wealthy district, and the principal town, Wisby, at the northern end, was one of the busiest places in all Europe. To this attractive island the boy viking sailed with all his ships, looking for rich booty, but the Gotlanders met him with fair words and offered him so great a "scatt," or tribute, that he agreed not to molest them, and rested at the island, an unwelcome guest, through all the long winter. Early in the spring he sailed eastward to the Gulf of Riga and spread fear and terror along the coast of Finland. And the old saga tells how the Finlanders "conjured up in the night, by their witchcraft, a dreadful storm and bad weather; but the king ordered all the anchors to be weighed and sail hoisted, and beat off all night to the outside of the land. So the king's luck prevailed more than the Finlander's witchcraft."