"Marvellous it seems to me," said Allogia, "that we can never learn what has become of the good Queen Astrid."

"I think," returned Olaf, "that if ever I were to journey into Esthonia I might get some tidings of her. The last that I heard of her was that she had been sold to a rich fisherman named Hallstein, who made her labour at cleaning the fish for him and mending his nets."

"A sorry occupation for a queen to be at!" Allogia said with a sigh. "But if it be that you have any hope of finding her, then it would be well if you made that journey you speak of. Sigurd Erikson goes north to Esthonia in three days' time, on business for the king. Will you not go with him?"

"Gladly will I go with him," answered Olaf, "if it be that I may."

Well, on the third day Olaf and Sigurd mounted their horses, and with a good company of men-at-arms set off on their journey over the rocky plains. Five days were they riding before they came within sight of the blue sea with its ships and its quiet green islands. That sight brought a restless yearning into Olaf's spirit. It seemed as if nothing would now content him but that he should go out upon the wide ocean and spend all his days in roving. And so much did he speak of the ships and of the viking life that when at last the time came for the return to Holmgard, Sigurd Erikson had hard work to win the boy away with him.

While Sigurd was dealing with the people concerning the king's business, Olaf Triggvison went about from place to place in quest of tidings of Queen Astrid. But nothing certain could he learn, for he dared not say that the woman he sought was the widow of King Triggvi, and when he told of her fairness those whom he questioned only shook their heads. They had seen many bondswomen who were fair, they said, and how could they tell that any one of them was she whom the young hersir was now seeking? At last Olaf found his way to the house of Hallstein the fisher, only to hear that Hallstein had been drowned in the sea full five winters before. But Olaf described his mother to the fisher's widow, who bade him fare to a certain yeoman named Einar Ulfsson, at a farmstead over the hills. So Olaf took horse and rode away to this man and questioned him concerning Astrid. Einar remembered her, for she had been his bondwoman for two summers. He had sold her, he said, to a stranger, who had taken her on board his ship and carried her away across the seas. This was the last trace of his mother that Olaf could discover, and he went back to Sigurd Erikson and told him what he had learned. Sigurd was very sad at this, for he loved his sister, and it pained him to think that she was still in slavery, when, if she could but be found, she might live in comfort and happiness. But he bade Olaf to be hopeful, "for," said he, "I think it may be that some friendly man has bought her and taken her home to Norway. And if that be so, then we shall soon learn the truth. I will send messengers to Ofrestead, and my father, Earl Erik, will surely find her if she is to be found."

Now when Olaf returned to Holmgard it was with the resolve that he would not long remain in this foreign land, but would take his first chance to go west over sea to the country of his birth. He had seen the ships passing along the rocky coasts of Esthonia; he had breathed the fresh free air of the sea, and the viking blood in him had been roused. His spirit was filled with the ambition to be the commander of a great warship, and to rove the ocean as his father had done, to visit distant lands and to make himself glorious in battle. But well he knew that to fit himself for the viking life he must increase his strength of body and acquire even greater skill than he now had in the use of all warlike weapons. So he set himself the task of excelling in the games and exercises that were then known and practised.

Already he had been taught by his uncle to read runes, to recite sagas, to play upon the harp, to carve wood, to twist string, to bend a bow, and to shaft an arrow. These and many other arts had come easy to his active mind and his deft fingers. All that a man of peace need know he knew full well. Nor had he neglected to give thought to the religion of his times. Every day he went into the temple to bow down in devout worship of the heathen gods, to take part in the rites and ceremonies of his faith, and even to offer sacrifice to Thor and Odin. The graven image of Odin was to him, as to most of the Norsemen, a sacred and a holy thing. When he took oath it was by the sign of Thor's hammer that he swore; he knew the names and the special powers of all the gods in Asgard, and Valhalla was the heaven to which, after death, he hoped to go.

But these arts and this religion would not alone fit him for fulfilling his ambition. To be such a great viking as he dreamed of becoming he must learn how to use his sword, how to wield his battleaxe, how to throw a spear and to shoot an arrow with greater skill than any other man could boast. He must learn, too, how to defend himself, and how, if wounded, to bear pain without shrinking. He was a king's son, and to be worthy of his father it was well that he should excel even the full grown men who had been well tried in battle and who had never known the meaning of defeat.

To this end Olaf remained three other years in Holmgard, which time he spent in making himself strong. In the neighbouring waters of Lake Ilmen he practised swimming, and with such success that at last he could remain under the surface for many minutes, diving off a ship's prow and coming up again under her steering board. So quickly and strongly could he swim that no man rowing in a boat could keep level with him. He could ride the wildest horse in the king's stable. At running and jumping no man could surpass him. In the use of the sword he was so expert that he could wield the weapon with either hand, and he could throw two spears at once. Never was he known to shoot an arrow without hitting the mark. So long as daylight served him he was always to be found performing some manly feat.