Edward left Oisemont at midnight and reached the ford at daylight. The river, however, was full and the army had to wait impatiently for low tide. When they arrived there no enemy was to be seen on the opposite bank, but before the water fell sufficiently for a passage to be attempted, Sir Godemar du Fay with 12,000 men, sent by King Phillip, who was aware of the existence of the ford, arrived on the opposite side.
The enterprise was a difficult one indeed, for the water, even at low tide, is deep. Godemar du Fay, however, threw away part of his advantage by advancing into the stream. The English archers lined the banks, and poured showers of arrows into the ranks of the enemy, while the Genoese bowmen on their side were able to give comparatively little assistance to the French.
King Edward shouted to his knights, “Let those who love me follow me,” and spurred his horse into the water. Behind him followed his most valiant knights, and Walter riding close to the Prince of Wales was one of the foremost.
The French resisted valiantly and a desperate battle took place on the narrow ford, but the impetuosity of the English prevailed, and step by step they drove the French back to the other side of the river. The whole army poured after their leaders, and the French were soon entirely routed and fled, leaving two thousand men-at-arms dead on the field.
King Edward, having now freed himself from the difficulties which had encompassed him on the other side of the river, prepared to choose a ground to give battle to the whole French army.
Louis had advanced slowly, feeling confident that the English would be unable to cross the river, and that he should catch them hemmed in by it. His mortification and surprise on finding, when he approached La Blanche Tache, that twelve thousand men had been insufficient to hold a ford by which but twelve could cross abreast, and that his enemy had escaped from his grasp, were great. The tide had now risen again, and he was obliged to march on to Abbeville and cross the river there.
King Edward now advanced into the Forest of Cressy.
Hugh de le Spencer, with a considerable force, was despatched to Crotoy, which he carried by assault after a severe conflict, in which four thousand of the French men-at-arms were slain. The capture of this city removed all danger of want from the army, for large stores of wine and meal were found there, and Sir Hugh at once sent off a supply to the tired army in the field.
The possession of Crotoy and the mouth of the Somme would have now rendered it easy for the English monarch to have transported his troops to England, and to have returned triumphant after the accomplishment of his extraordinary and most successful march through France. The army, however, was elated by the many great successes it had won, he was now in Ponthieu, which was one of his own fiefs, and he determined to make a stand in spite of the immense superiority of the enemy.
Next morning, then—Friday the 25th of August, 1346—he despatched the Earl of Warwick with Godfrey of Harcourt and Lord Cobham, to examine the ground and choose a site for a battle.