Sigurd Eriksson, Aastrid's brother, and the uncle of Olaf, was a man of prominence in Esthonia, and one day rode on business of King Vladimir through the town in which Reas lived. Here he saw some boys playing, one of whom attracted him by his manly and handsome face. Calling him to his horse's side, he asked his name.
"Olaf," said the boy.
Olaf! The name was significant to Sigurd, and a few words more taught him that the lad was his lost nephew. Seeking Reas, he offered him a good price for his two young slaves and took them home with him, bidding Olaf not to tell any one else who he was.
The boy was now well-grown, active, and strong for his years. Walking one day about the town he saw before him the viking Klerkon who had killed old Thorolf, his foster-father. He had at the moment an axe in his hand and, with no thought but that of revenge on the murderer, he struck him a blow that split his skull and stretched him dead on the ground.
The boy was in peril of his life for this impulsive deed. Death was its legal penalty, and a crowd quickly gathered who demanded that the boy murderer should be killed. His uncle heard of the act and ran in haste to his rescue, taking him to Olga, the queen, and telling her who he was, what he had done, and why he had done it.
The queen looked at the beautiful and bright-faced lad and took a great fancy to him at sight. She took him under her protection, and gave him a training in the use of arms and warlike sports, such as beseemed the scion of a royal race. When twelve years of age King Vladimir, who esteemed the boy highly, gave him some armed ships and sent him out to try his hand in real war, and for some years he roved abroad as a viking. He also served the king well by conquering for him a rebel province.
Olaf might have won high rank in Russia but for the enemies who envied him and who made the king fear that he would yet find a rival for the throne in the ambitious boy. Fearing trouble for her protege, Queen Olga advised him to leave the kingdom and he sailed for the land of the Wends, on the Baltic shores, where King Burislav received him as a distinguished young warrior. He did not tell who he really was, but went under the name of Ole the Russian, and as such married the daughter of the king, who fell in love with him for his valor and beauty. Many were the valiant deeds he did for King Burislav, with whom he stayed until the death of his wife, he being then twenty-one years of age.
The young warrior now grew eager for new adventures, and in response to a dream determined to go to Greece and become a Christian. His dream served the cause of Christianity better than this, if the story is true that he sent a missionary bishop to Russia who converted both King Vladimir and Queen Olga to the Christian faith.
