One day, after he had behaved with such prudence that his keepers had almost given up watching him, he managed, while strolling in the great park, to give them the slip, and to hide himself where there was no chance of anyone finding him. He contrived somehow to get hold of a pilgrim's dress; then that of a cattle-driver, and in this disguise he made his way to the free city of Lübeck, and threw himself on the mercy of the burgomaster or mayor. By this time his enemies were on his track, and his noble gaoler, Sir Eric Bauer, claimed him as an escaped prisoner. But the people of Lübeck, who at that moment had a trade quarrel with Denmark, declared that the fugitive was not a prisoner who had broken his parole, but a hostage who had been carried off by treachery, and refused to give him up, though perhaps their own interest had more to do with their steadfastness than right and justice. As it was, Gustavus was held fast in Lübeck for eight months before they would let him go, and it was not until May 1520 that he crossed the Baltic in a little fishing-smack, and sailed for Stockholm, then besieged by Danish ships and defended by the widow of the Regent. But finding the town closely invested, he made for Calmar, and after a short stay in the castle he found his way into the heart of the country, learning sadly at every step how the worst enemies of Sweden were the Swedes themselves, who betrayed each other to their Danish foes for jealousy and gold. Like Prince Charlie, however, he was soon to find faithful hearts among his countrymen, and for every traitor there were at least a hundred who were true. While hiding on his father's property, he sent some of his tenants to Stockholm, to find out the state of affairs there. The news they brought was terrible. A fearful massacre, known in history as the Blood Bath, had taken place by order of the King. Citizens, bishops, nobles, and even servants had been executed in the public market, and the King's thirst for blood was not satisfied until some hundreds of Swedes had laid down their lives. Among those who fell on the first day was the father of Gustavus Vasa, who is said to have indignantly rejected the pardon offered him by the King for his fidelity to his country. 'No,' he exclaimed; 'let me die with all these honest men.' So he died, and his son-in-law after him, and his wife, her mother, sister, and three daughters were thrown into prison, where some of them were starved to death. To crown all, a price was set on the head of Gustavus.