King Olaf took very great wealth from Rand's stronghold, and all the men who had been in the viking's service were allowed to go free on condition that they would first be christened. The dragonship which Rand had commanded now became King Olaf's property, for it was the most beautiful vessel in all Norway, and very much larger than the Crane, which Olaf had had built for himself. Forward at the prow there was a very tall dragon's head, overlaid with thick gold, and at the stern was a long dragon's tail, also of gold. When the sails were aloft they took the form of dragon's wings. The king named the ship the Serpent.
While Olaf was in Halogaland he deemed it well to sail yet farther north; so he fared out to the Lafoden Isles, and thence along the coasts of Finmark as far even as the North Cape. He baptized all those regions and destroyed many heathen temples and established Christianity far and wide.
In that same summer King Olaf was back again in the Thrandheim country, and had his fleet anchored off Nidaros. Now it was in this part of Norway that Earl Hakon's power had always been greatest, and so zealous had Hakon been in the keeping up of pagan customs that many of the chief men of those parts withstood all King Olaf's efforts to win them over to Christianity, and during his absence in Halogaland these men did all they could to undo the good work that he had done in the earliest days of his reign.
Not many days had Olaf been back in Nidaros when he heard that the Thranders had re-established their temples, restored their idols, and offered blood sacrifice to their gods. The young king was so disturbed in mind over this that he resolved to put a speedy stop to it. He therefore sent his messengers through all the lands bordering on Thrandheim fiord summoning a great meeting of the bonders at a place named Frosta.
Now the bonders quickly guessed the meaning of this summons. They knew that the king would have them abandon their old customs and accept the new faith. But they considered that he had no right to dictate to them; so they turned this summons into one of war, and drew together, both thane and thrall, from all parts of Thrandheim.
When King Olaf came to the meeting, thither also had come the hosts of the bonders, all fully armed, ready to confront him.
When the Thing was established the king rose and spoke before his lieges, first concerning matters of peace and law, and finally he bade them take christening again.
There was one among the bonders named Skeggi Ironbeard, a very rich farmer who cared little for king or earls, but loved only the freedom of his farm, his ale at night, and the warmth of his fireside. He was a huge and cumbersome man with an iron gray beard, and as he stood by the side of his horse his feet were seen to be covered with the mud of his ploughed fields. Near him there was a beautiful girl with very black hair and dark brown eyes. She was his daughter Gudrun.
Well, when King Olaf began to rebuke the people for having gone back from Christian worship, many men looked round at Ironbeard with wise glances.
"Now hold your peace, O king!" cried he, addressing Olaf. "Say not another word of this Christian faith of yours, or, by the hammer of Thor and by the ravens of Odin, we will fall upon you and drive you away out of the land. Thus did we with King Hakon the Good, nor do we account you of a whit more worth than him."