There were but few preparations to be made. Each man had had his post assigned to him on the walls in case of an attack, and piles of stones had been collected in readiness to cast down upon the heads of those attempting an assault. Cauldrons were carried up to the walls and filled with water, and great fires were lighted under them. In half an hour the French infantry had reached the spot, but another two hours elapsed before any hostile movement was made, the leaders of the assailants giving their men that time to rest after their long march. Then a stir was visible among them, and they were seen to form in four columns, each about a thousand strong, which advanced simultaneously against opposite sides of the castle. As soon as their intentions were manifest Walter divided his little force, and these, gathering in four groups upon the walls, prepared to resist the assault. To four of his most trusty men-at-arms he assigned the command of these parties, he himself and Ralph being thus left free to give their aid where it was most needed. The assailants were well provided with scaling-ladders, and advanced with a number of crossbow-men in front, who speedily opened a hot fire on the walls. Walter ordered his archers to bide their time, and not to fire a shot till certain that every shaft would tell. They accordingly waited until the French arrived within fifty yards of the wall, when the arrows began to rain among them with deadly effect, scarce one but struck its mark--the face of an enemy. Even the closed vizors of the knights and chief men-at-arms did not avail to protect their wearers; the shafts pierced between the bars or penetrated the slits left open for sight, and many fell slain by the first volley. But their numbers were far too great to allow the columns being checked by the fire of so small a number of archers; the front ranks, indeed, pressed forward more eagerly than before, being anxious to reach the foot of the wall, where they would be in comparative shelter from the arrows.