He was, however, wise enough to recognize that in order to succeed in his mission it was necessary for him first to make his own position as monarch perfectly secure and unassailable. So rapidly did he establish himself in the hearts of the people that even at the end of the first summer he found that he might with safety begin his task. His one possible rival and natural enemy, Earl Erik Hakonson, with some few others of the kin of the late earl, had fled in fear from the land, leaving him in absolute possession; and the lords of Viken and other districts of the south, who had hitherto held their lands of the King of Denmark, now became King Olaf's men, and paid him homage and tribute.

At this time Olaf could only depend upon his priest Thangbrand for practical help. Thangbrand was a Saxon who had formerly been attached to the see of Canterbury. He was a man of very violent temper, and his readiness to enter a quarrel and to draw his sword must have made him a very singular exponent of the gospel of peace. Olaf saw very soon that he would require further help than this pugnacious priest could give; so he sent Thangbrand over to England, bidding him fare to Canterbury and bring back with him as many holy men as might be willing to serve him as missionaries.

Meanwhile King Olaf, with some of his chosen companions, journeyed south into Viken, where his mother lived with her husband Lodin--the same who had bought her out of her bondage. There he abode throughout the winter among his own kindred as well as many who had been great friends with his father. They welcomed him with very great love.

And now, while the king was living with his friends in quiet comfort and homeliness, he laid his plans most earnestly before them, craving that they should help him with all their might. He said that he intended to have the Christian faith set forth throughout all his realm, and that he would bring about the christening of Norway or else die in the endeavour. Accordingly he began by going about in Viken, bidding the peasants take baptism, so it came to pass that the district which his father, Triggvi, had formerly ruled over was the first part of Norway to receive the true faith.

He was still in Viken when at the end of the winter Thangbrand returned from England with a company of priests. Among them was a certain Bishop Sigurd, a man of grave and gentle spirit, most learned and eloquent, who stood at Olaf's right hand during the whole five years of his reign.

Now Bishop Sine, of Canterbury, had presented Thangbrand with a very costly and curiously wrought shield. It was made of burnished bronze, inlaid with gold and precious stones, and it bore the image of the crucified Christ. Olaf admired this shield and desired to buy it. Thangbrand loved money more than ornament, and he sold the shield to the king for a very large sum. Finding himself suddenly rich, the priest went off to enjoy himself. He fell into a drunken brawl with a certain viking, who challenged him to fight. A desperate duel was fought and the viking was killed. Great ill feeling was aroused against Thangbrand by this unpriestly incident, and he went back full of penitence to King Olaf.

Olaf foresaw that he would have trouble with this man, and he would no longer bear to have him about his house; so, to get rid of him, he sent him on a mission to Iceland, to convert the heathen there. Thangbrand was absent in Iceland for three winters, and although he had great success and brought the country to the true faith, yet he was not well liked, and the people vexed him by making songs about him. Here, as in Norway, he was boisterous and boastful and over fond of the drinking horn. It is told that in a quarrel with the islanders he slew three men. Howbeit, he was obliged to return to Norway with his mission only half fulfilled.

King Olaf met with no opposition in his endeavour to convert the people of Viken and Agder. In the district of Ringarike he christened a certain little boy, the son of Harald Groenske, who was of the race of Harald Fairhair. The king named the boy Olaf, and in giving him his blessing said that he would one day be a very great man. This same Olaf Haraldson afterwards became the King of Norway and a very great evangelist. He is known in history by the title of Olaf the Saint, and he is to this day regarded as the patron saint of Norway. He fought many battles in England, and, for this reason perhaps, he is often wrongly confused with his godfather, Olaf Triggvison.

To tell of all the good and ill happenings that King Olaf met with in his progress through the land would make a long story. In many districts he had but to announce his mission, and the people at once yielded. In other places the people were very slow to understand that there could be any advantage in changing their religion; but Olaf never left them before every man and woman had been christened. Often, however, he was met by bands of armed men who declared that they would sooner die than consent to give up their old faith in Odin and Thor, and then the king enforced his doctrines at the point of the sword, or even by torture. When moved to anger he was guilty of committing cruelties which in his calmer moments he sorely regretted, but it is to be supposed that he never took to violent measures unless when very severely provoked. For the most part he generally found that wise words were a better argument than either the sword or fire.

Always when he came to a place where the people were still pagan it was his custom to summon a great meeting, and then he would tell of how the folk of another district had accepted Christianity and torn down their sacrificing houses, and now believed in the true God, who shaped heaven and earth and knew all things. Then perhaps he would fall into argument with one of the leading men of the place and show how the God of christened men was almighty, and how Thor and Odin must therefore be rejected.