Thorstein, Leif's brother, married Gudrid, widow of the captain rescued by Leif, then lead a third expedition to bring home Thorvald's body, but drifted off course and spent the whole summer sailing the Atlantic. Spending the winter as a guest at a farm on Greenland with Gudrid, Thorstein died of disease, reviving just long enough to make a prophecy about her future as a Christian. The next winter, Gudrid married a visiting Icelander named Thorfinn Karlsefni, who agreed to undertake a major expedition to Vinland, taking livestock. On arrival, they soon found a beached whale which sustained them until spring. In the summer, they were visited by some of the local inhabitants who were scared by the Greenlanders' bull, but happy to trade goods for milk and other products. In autumn, Gudrid gave birth to a son, Snorri. Shortly after this, one of the local people tried to take a weapon and was killed. The explorers were then attacked in force, but managed to survive with only minor casualties by retreating to a well-chosen defensive position, a short distance from their base. One of the local people picked up an iron axe, tried it, and threw it away.