Halfdan had thus become sovereign of both kingdoms, and graced his fame with a triple degree of honour. For he was skillful and eloquent in composing poems in the fashion of his country; and he was no less notable as a valorous champion than as a powerful king. But when he heard that two active rovers, Toke and Anund, were threatening the surrounding districts, he attacked and routed them in a sea-fight. For the ancients thought that nothing was more desirable than glory which was gained, not by brilliancy of wealth, but by address in arms. Accordingly, the most famous men of old were so minded as to love seditions, to renew quarrels, to loathe ease, to prefer fighting to peace, to be rated by their valour and not by their wealth, to find their greatest delight in battles, and their least in banquetings.
But Halfdan was not long to seek for a rival. A certain Siwald, of most illustrious birth, related with lamentation in the assembly of the Swedes the death of Frode and his queen; and inspired in almost all of them such a hatred of Halfdan, that the vote of the majority granted him permission to revolt. Nor was he content with the mere goodwill of their voices, but so won the heart of the commons by his crafty canvassing that he induced almost all of them to set with their hands the royal emblem on his head. Siwald had seven sons, who were such clever sorcerers that often, inspired with the force of sudden frenzy, they would roar savagely, bite their shields, swallow hot coals, and go through any fire that could be piled up; and their frantic passion could only be checked by the rigour of chains, or propitiated by slaughter of men. With such a frenzy did their own sanguinary temper, or else the fury of demons, inspire them.