The perils of Aastrid were not yet at an end. Gunhild, the sorceress queen, was her chief enemy, and when her spies brought her word that Aastrid had borne a son, the wicked old woman sought to destroy the child.

The summer through Aastrid remained on the little isle, hiding in the weedy bushes by day and venturing abroad only at night. Everywhere Gunhild's spies sought her, and when autumn came with its long nights, she left the isle and journeyed with her attendants through the land, still hiding by day and travelling only under the shades of night. In this way she reached the estate of her father, Erik Ofrestad.

The poor mother was not left in peace here, the evil-minded sorceress still pursuing her. A body of murderers was sent to seek for her and her son on her father's estate, but Ofrestad heard of their mission in time to send the fugitives away. Dressed as beggars, Aastrid and her child and Thorolf, her foster-father, travelled on foot from the farm, stopping at evening to beg food and shelter from a peasant named Björn. The surly fellow drove them away, but they were given shelter farther on by a peasant named Thorstein.

Meanwhile the murderers were hot on their track. Not finding Aastrid at her father's house, they traced her to Björn's farm, where they were told that a handsome but poorly dressed woman, carrying a young child, had asked for help that evening. It chanced that a servant of Thorstein overheard this and when he reached home he told it to his master. Suspecting the rank and peril of his guests, Thorstein roused them from sleep with a great show of anger and drove them out into the night. This was done to deceive the servants, but Thorstein followed the weary fugitives and told them the reason of his act. He had driven them out to save them, he said, and he gave them a trusty guide who could show them the best hiding places in the forest. They found shelter for that night amid the tall rushes by the side of a small lake.

When the troop of murderers reached Thorstein's house he set them astray on the wrong scent and he fed the fugitives in the forest until the murderous gang had given up the search. In the end he aided them to make their way to Sweden, where they took refuge with a friend of Prince Tryggve named Haakon the Old.

Still the wicked queen did not let them rest in peace. Learning where they were, she sent two embassies to King Erik of Sweden, demanding the surrender of the mother and child. Each time Erik gave them permission to capture the fugitives if they could, saying that he would not interfere. But Haakon the Old was not the man to surrender his guests. In vain Gunhild's ambassador came to him with promises and threats. The dispute at length grew so hot that a half-witted servant seized a dung-fork and rushed at the ambassador, who took to his heels, fearing to have his fine clothes soiled. The angry thrall pursued him till he was driven off the estate, Haakon looking on with grim mirth.

Such were the early days of little Olaf, whose life began in a series of adventures which were the prologue to a most stirring and active life. Few men have had a more adventurous career than he, his whole life being one of romance, activity and peril. He became a leading hero of the saga writers, who have left us many striking stories of his young life and adventures.

Aastrid and her son remained with Haakon the Old until Earl Haakon came into power in Norway. As he was not of royal blood, she feared that he might seek to destroy all the descendants of old King Harold, and, in doubt if her present protector was strong enough to defend her, she decided to seek refuge in Russia, where her brother Sigurd had risen to a place of power.

With this voyage young Olaf's later series of adventures began. The merchant ship in which they set sail was taken by a viking pirate craft, some of the passengers being killed and others sold as slaves. Thorolf and his young son Thorgills, with the boy Olaf, were sold to a viking named Klerkon, who killed Thorolf because he was too old to bring any price as a slave, but kept the boys, whom he soon traded away in Esthonia for a big ram. As for Aastrid, she was offered for sale at the slave-market, and here, despite her ragged and miserable plight, she was recognized by a rich merchant named Lodin. He offered to pay her ransom if she would become his wife. The poor woman, not knowing what had become of her son, was glad to accept his offer and returned with him to his home in Norway.

To return to the story of the boy slaves, the man who had bought them for a ram, soon sold them for a coat and cape to a man named Reas. The new master put Thorgills to hard labor, but took a fancy to Olaf and treated him much more kindly, the young prince remaining with him for six years and growing up to be a handsome and sturdy youth.