In order to distinguish "The Long-Serpent" from the dragon-ship he had taken from Raud the Strong, Olaf called the latter "The Short-Serpent." He had many other excellent ships besides, and his brothers-in-law, Erling Skjalgsson of Sole, Thorgeir, and Hyrning, joined him, each with a large and finely-equipped galley.
When he steered southward to Wendland, he had about 60 ships of war besides a similar number of smaller transports. King Burislav, in spite of his union with Thyra, received him well, possibly on account of the earlier relationship through Geira, or on account of their common hostility to Sweyn Forkbeard in Denmark. The question of the estates was amicably settled and Olaf, after having been splendidly entertained, prepared to start homeward. The rumor, in the meanwhile, had gone abroad that he was in Wendland, and his enemies, in order to gather a sufficiently large force to destroy him, employed Earl Sigvalde, the chief of the Jomsvikings, to detain him and lull him into a false security. In this the treacherous earl succeeded. He gained Olaf's confidence, scouted the thought that Sweyn Forkbeard should ever dare attack him; and finally offered to escort him on the way with his own fleet and pilot him through the dangerous waters along the Wendic coast. It was of no avail that Sigvalde's wife, Aastrid, the night before Olaf's departure, warned him against her husband as openly as she dared, and proposed to send a ship along in case of danger. A strange infatuation bound him to his false friend. At Sigvalde's advice he even permitted part of his fleet to start in advance, as the straits between the islands were narrow. The traitor, in the meanwhile, was in constant communication with King Sweyn, at whose request he agreed to separate Olaf from his main force and lead him into the trap which his foes had prepared for him. Besides King Sweyn there were Earl Erik, who had the death of his father, Earl Haakon, to avenge, and King Olaf the Swede, the son of Sigrid the Haughty. All these were lying in wait with about sixty or seventy war galleys, behind the little island of Svolder, between the island Rügen and the present Prussian province, Pomerania. From their hiding-place they looked for several days in vain for the Norse ships, and began to grow impatient. They had gone ashore with their crews in order to while away the time, and the three commanders were standing together, sweeping the horizon with their glances, when, to their delight, the Norse transport fleet hove in sight, spreading its sails before the favoring breeze.
The day was fair. The sun shone brightly, and the surface of the water barely curled into slight undulations. Gayly the proud ships stood out to the sea, one larger and finer than the other. When King Sweyn saw the beautiful ship of Erling Skjalgsson of Sole, he was sure that it must be "The Long Serpent," though it had no dragon-head in its prow. "Afraid is Olaf Tryggvesson to-day," he said, "since he dares not carry a head on his dragon." "This ship I know well by its striped sails," said Earl Erik; "it does not belong to the king, but to Erling Skjalgsson. Let it pass; for if, as I suppose, he is himself on board, we shall be best served, if he and his band are not found among those with whom we are to fight to-day."
By twos and threes the great ships of the Norse chieftains passed by, and every time the Swedish and the Danish king were sure that one of them must be "The Long Serpent." Presently Sigvalde's fleet of eleven ships became visible, and having received signals from the allied princes, turned its course suddenly around the island, to the great astonishment of Thorkill Dyrdill, who was steering the king's ship, "The Crane," right in its wake. King Sweyn, at the sight of this splendid galley, could no more be restrained, but ordered his men aboard, in spite of Earl Erik's warning. He even insinuated that the latter was a coward who had no ambition to avenge his father; to which the earl replied, that before the setting of the sun it would be seen who was the more eager for battle, the Swedes and Danes, or he and his men.
Thorkill Dyrdill dropped the sails of "The Crane," and, taking in the situation at a glance, determined to await the arrival of King Olaf. Then came "The Short Serpent," casting golden gleams across the water from its shining dragon-head; and King Sweyn cried exultingly: "Loftily shall the Serpent bear me to-night, and I shall steer her."
Earl Erik, in whom King Sweyn's recent taunt was rankling, replied: "Even if Olaf Tryggvesson had no larger ship than this, Sweyn, with all his army of Danes, could not win it from him."
When at last "The Long Serpent" reared its flaming prow against the horizon, shooting long beams in the sun, the three princes marvelled at its beauty. Many a one trembled, too, with fear, when he saw the majestic ship approaching, and the dense rows of polished shields and swords flashing from afar.
"This glorious ship," said Earl Erik, "is fitting for such a king as Olaf Tryggvesson; for it may, in sooth, be said of him, that he is distinguished above all other kings as 'The Long Serpent' above all other ships."
All King Olaf's fleet, with the exception of eleven ships, were now out of sight, and many of his chieftains advised him not to fight against such heavy odds. He would not listen to their counsel, but ordered the ships to be bound together and every thing to be prepared for battle.
"Down with the sails," he cried with a loud voice, which could be clearly heard across the waters; "never have I yet fled from any battle. God rules over my life. Never will I flee; for he is no king who shuns his foes because of fear."