King Audbjorn went with his forces northwards to Mæra; there he joined king Arnvid and Solvi Bandy-legs, and altogether they had a large host. King Harold also had come from the north with his forces, and the armies met inside Solskel. There was fought a great battle, with much slaughter in either host. Of the Mærian forces fell the kings Arnvid and Audbjorn, but Solvi escaped, and afterwards became a great sea-rover, and wrought much scathe on Harold's kingdom, and was nicknamed Bandy-legs. On Harold's side fell two earls, Asgaut and Asbjorn, and two sons of earl Hacon, Grjotgard and Herlaug, and many other great men. After this Harold subdued South Mæra. Vemund Audbjorn's brother still retained the Firthfolk, being made king. It was now autumn, and king Harold was advised not to go south in autumn-tide. So he set earl Rognvald over North and South Mæra and Raumsdale, and kept a numerous force about himself.

That same autumn the sons of Atli set on Aulvir Hnuf at his home, and would fain have slain him. They had such a force that Aulvir could not withstand them, but fled for his life. Going northwards to Mæra, he there found Harold, and submitted to him, and went north with the king to Throndheim, and he became most friendly with him, and remained with him for a long time thereafter, and was made a skald.

In the winter following earl Rognvald went the inner way by the Eid-sea southwards to the Firths. Having news by spies of the movements of king Vemund, he came by night to Naust-dale, where Vemund was at a banquet, and, surrounding the house, burnt within it the king and ninety men. After that Karl of Berdla came to earl Rognvald with a long-ship fully manned, and they two went north to Mæra. Rognvald took the ships that had belonged to Vemund and all the chattels he could get. Kari of Berdla then went north to king Harold at Throndheim, and became his man.

Next spring king Harold went southwards along the coast with a fleet, and subdued firths and fells, and arranged for men of his own to rule them. Earl Hroald he set over the Firthfolk. King Harold was very careful, when he had gotten new peoples under his power, about barons and rich landowners, and all those whom he suspected of being at all likely to raise rebellion. Every such man he treated in one of two ways: he either made him become his liege-man, or go abroad; or (as a third choice) suffer yet harder conditions, some even losing life or limb. Harold claimed as his own through every district all patrimonies, and all land tilled or untilled, likewise all seas and freshwater lakes. All landowners were to be his tenants, as also all that worked in the forest, salt-burners, hunters and fishers by land and sea, all these owed him duty. But many fled abroad from this tyranny, and much waste land was then colonized far and wide, both eastwards in Jamtaland and Helsingjaland, and also the West lands, the Southern isles, Dublin in Ireland, Caithness in Scotland, and Shetland. And in that time Iceland was found.

Auðbjörn konungr fór með lið sitt, þat er honum fylgði, norðr á Mæri ok hitti þar Arnvið konung ok Sölva klofa, ok höfðu þeir allir saman her mikinn. Haraldr konungr var þá ok norðan kominn með sínu liði, ok varð fundr þeira fyrir innan Sólskel. Var þar orrosta mikil ok mannfall mikit í hvárratveggju liði. Þar fellu ór Haralds liði jarlar tveir, Ásgautr ok Ásbjörn, ok tveir synir Hákonar Hlaðajarls, Grjótgarðr ok Herlaugr, ok margt annat stórmenni, en af liði Mæra Arnviðr konungr ok Auðbjörn konungr. En Sölvi klofi komst undan á flótta ok var síðan víkingr mikill ok gerði oft skaða mikinn á ríki Haralds konungs ok var kallaðr Sölvi klofi. Eftir þat lagði Haraldr konungr undir sik Sunnmæri.

Vémundr, bróðir Auðbjarnar konungs, helt Firðafylki ok gerðist þar konungr yfir. Þetta var síð um haustit, ok gerðu menn þat ráð með Haraldi konungi, at hann skyldi eigi fara suðr um Stað á haustdegi. Þá setti Haraldr konungr Rögnvald jarl yfir Mæri hváratveggju ok Raumsdal ok sneri norðr aftr til Þrándheims ok hafði um sik mikit fjölmenni.

Þat sama haust veittu synir Atla heimför at Ölvi hnúfu ok vildu drepa hann. Þeir höfðu lið svá mikit, at Ölvir hafði enga viðstöðu ok komst með hlaupi undan. Fór hann þá norðr á Mæri ok hitti þar Harald konung, ok gekk Ölvir til handa honum ok fór norðr til Þrándheims með konungi um haustit, ok komst hann í ina mestu kærleika við konung ok var með honum lengi síðan ok gerðist skáld hans.

Þann vetr fór Rögnvaldr jarl it iðra um Eiðsjó suðr í Fjörðu ok hafði njósnir af ferðum Vémundar konungs ok kom um nótt, þar sem heitir Naustdalr, ok var Vémundr þar á veizlu. Tók þar Rögnvaldr jarl hús á þeim ok brenndi konunginn inni með níu tigum manna. Eftir þat kom Berðlu-Kári til Rögnvalds jarls með langskip alskipat, ok fóru þeir báðir norðr á Mæri. Tók Rögnvaldr skip þau, er átt hafði Vémundr konungr, ok allt þat lausafé, er hann fekk. Berðlu-Kári fór þá norðr til Þrándheims á fund Haralds konungs ok gerðist hans maðr.

Um várit eftir fór Haraldr konungr suðr með landi með skipaher ok lagði undir sik Fjörðu ok Fjalir ok skipaði þar til ríkis mönnum sínum. Hann setti Hróald jarl yfir Firðafylki.

Haraldr konungr var mjök gjörhugall, þá er hann hafði eignazt þau fylki, er nýkomin váru í vald hans, um lenda menn ok ríka búendr ok alla þá, er honum var grunr á, at nökkurrar uppreistar var af ván, þá lét hann hvern gera annat hvárt, at gerast hans þjónustumenn eða fara af landi á brott, en at þriðja kosti sæta afarkostum eða láta lífit, en sumir váru hamlaðir at höndum eða fótum. Haraldr konungr eignaðist í hverju fylki óðul öll ok allt land, byggt ok óbyggt, ok jafnvel sjóinn ok vötnin, ok skyldu allir búendr vera hans leiglendingar, svá þeir, er á mörkina ortu, ok saltkarlarnir ok allir veiðimenn bæði á sjó ok landi þá váru allir þeir honum lýðskyldir.

En af þessi áþján flýðu margir menn af landi á brott, ok byggðust þá margar auðnir víða bæði austr í Jamtaland ok Helsingjaland ok Vestrlönd, Suðreyjar, Dyflinnarskíði, Írland, Norðmandí á Vallandi, Katanes á Skotlandi, Orkneyjar ok Hjaltland, Færeyjar. Ok í þann tíma fannst Ísland.