There came first a flying report to Vindland that the Danish king,
Svein, had fitted out an army; and it was soon whispered that he
intended to attack King Olaf. But Earl Sigvalde says to King Olaf, "It
never can be King Svein's intention to venture with the Danish force
alone, to give battle to thee with such a powerful army; but if thou
hast any suspicion that evil is on foot, I will follow thee with my
force (at that time it was considered a great matter to have Jomsborg
vikings with an army), and I will give thee eleven well-manned ships."
The king accepted this offer; and as the light breeze of wind that
came was favourable, he ordered the ships to get under weigh, and the
war-horns to sound the departure. The sails were hoisted and all the
small vessels, sailing fastest, got out to sea before the others. The
earl, who sailed nearest to the king's ship, called to those on board to
tell the king to sail in his keel-track: "For I know where the water
is deepest between the islands and in the sounds, and these large ships
require the deepest." Then the earl sailed first with his eleven ships,
and the king followed with his large ships, also eleven in number; but
the whole of the rest of the fleet sailed out to sea. Now when Earl
Sigvalde came sailing close under the island Svold, a skiff rowed out
to inform the earl that the Danish king's army was lying in the harbour
before them. Then the earl ordered the sails of his vessels to be
struck, and they rowed in under the island. Haldor the Unchristian
says:--
"From out the south bold Trygve's son
With one-and-seventy ships came on,
To dye his sword in bloody fight,
Against the Danish foeman's might.
But the false earl the king betrayed;
And treacherous Sigvalde, it is said,
Deserted from King Olaf's fleet,
And basely fled, the Danes to meet."
It is said here that King Olaf and Earl Sigvalde had seventy sail of
vessels: and one more, when they sailed from the south.