The French, as on the previous occasion, held the ford; but they this time had erected defences on each of the banks, and had strong posts driven into the bed of the river. Still ascending along the river bank the English found every bridge broken and every ford fortified, while a great body of troops marched parallel with them on the right bank of the river. At Pont St. Remy, Ponteau de Mer, and several other points they tried in vain to force a passage. Seven days were spent in these attempts; the troops, suffering terrible hardships, were disheartened at their failure to cross the river, and at finding themselves getting farther and farther from the sea. On the morning of the 19th, however, a ford was discovered which had not been staked. The English vanguard at once made a dash across it, repulsed its defenders on the other bank, and the whole army with its baggage, which was of scanty dimensions, swarmed across the river.

Sir Eustace, with his little force, now reduced to half its number, was, as it happened, in front of the army when the ford was discovered, and, followed by his two esquires and ten mounted men-at-arms, dashed into the river, while the archers, slinging their bows behind them, drew their axes and followed. For a short time there was a desperate conflict, but as reinforcements hurried across, the fight became more even and the French speedily gave way. When the king had crossed he thanked Sir Eustace for his prompt action.

"Had you waited to send back for orders," he said, "the French would have come up in such numbers that the ford would not have been won without heavy loss, whereas by dashing across the moment it was discovered, you took the defenders by surprise and enabled us to get over without the loss of a single man."

The constable, disconcerted at finding that all his plans for keeping the English on the left bank of the river were foiled, fell back to St. Pol in Artois. Henry followed, but without haste. His small force was greatly reduced by sickness, while by this time the whole of the royal army had marched round and joined that of the constable. On the day after the passage had been effected three heralds arrived in the English camp to acquaint the king with the resolution of the constable and of the Dukes of Orleans and Brabant to give his army battle before he reached Calais. Henry replied that fear of them would not induce him to move out of his way or to change the order of his march; he intended to go on straight by the road to Calais, and if the French attempted to stop him it would be at their peril; he accordingly continued to advance at the same rate as before.

The constable fell back from St. Pol and took up his post between the villages of Ruissanville and Agincourt, where, having received all the reinforcements he expected, he determined to give battle. On the 24th the English crossed the Ternois at Blangi, and soon afterwards came in sight of the enemy's columns. These fell back as he advanced, and towards evening he halted at the village of Maisoncelles, within half a mile of the enemy's position. Fortunately provisions had been obtained during the day's march; these were cooked and served out, and the English lay down to sleep. The king sent for Sir Eustace.

"You know this ground well, I suppose, Sir Eustace," he said, "for your Castle of Villeroy is not many miles distant?"

"'Tis but six miles away," the knight replied. "It is a good ground to fight on, for facing it are fields, and on either flank of these are large woods, so that there will be little space for the enemy to move."

"That is just what I would have," the king said. "Were they but half as strong as they are I should feel less confident that we should defeat them; their numbers will hinder them, and the deep wet ground will hamper their movements. As for ourselves, I would not have a man more with me if I could; the fewer we are the greater the glory if we conquer, while if we are defeated the less the loss to England. Does your young esquire also know the ground, Sir Eustace?"

"Yes, sire; he has, I know, often ridden here when hawking."

"Then let him go with four of my officers, who are about to reconnoitre the ground and see where we had best fight."