The confidence of the Saxons was justified, for the combat was never in doubt. Although the Northmen fought bravely they were unable to withstand the steady advance of the wedge of spears, and very many fell beneath the rain of arrows from above. Steadily the wedge made its way until it reached the end of the boom. A few blows with their axes sufficed to cut the cables which fastened it in its place. As soon as this was done Edmund gave a shout, and the Saxons at once sprang on board the ship, which before the Danes could follow them was steered out into the stream.

As Egbert had foreseen, the boom as it swung round swept before it a number of the Danish boats, and imprisoned them between it and the shore. The oars were soon run out, and while the men on the forecastle continued their fire at the Danish boats, the others seizing the oars swept the Dragon along the stream. The Danes strove desperately to arrest her progress. Some tried to run alongside and board, others dashed in among the oars and impeded the work of the rowers, while from the walls of the town showers of missiles were poured down upon her. But the tide was gaining every moment in strength, and partly drifting, partly rowing, the Dragon, like a bull attacked by a pack of dogs, made her way down the river. Every effort of the Danes to board was defeated, and many of their boats sunk, and at last she made her way into the open sea. There her sails were hoisted, and she soon left her pursuers behind. Once at sea her course was again turned north, and picking up some prizes on the way she took up her station off the mouth of the Humber.