Before ordering the assault, the way was prepared for it by a terrible fire from every siege gun of the Turks. This was kept up for twenty-four hours, and so tremendous was the effect that the knights were unable to remain on the ramparts. The Turkish troops moved into position for attack, their movements being covered by the roar of the guns, and soon after sunrise on the 22nd of July the signal was given, and at a number of different points the Turks rushed to the assault. All these attacks, save that on the breach, were merely feints, to distract the attention of the garrison, and to add to the confusion caused by this sudden and unexpected onslaught. The pasha's plans were well designed and carried out; the knights, unable to keep their places on the ramparts under the storm of missiles, had retired to shelter behind the walls. There was no thought of an instant assault, as they considered that this would not be delivered until the new wall behind the breach had been demolished. Consequently, the rush of the Turks found the defenders altogether unprepared. Swarming across the mass of debris in the ditch, they ascended the breach without opposition, and their scaling ladders were placed against the new wall before the knights could hurry up to its defence. Even before the alarm was given in the town, the Turkish standard was waving on the parapet, and the Moslems were crowding on to the wall in vast numbers. The suddenness of the attack, the complete surprise, the sound of battle at various points around the walls, caused for a time confusion and dismay among the knights charged with the defence of the wall facing the breach. Roused by the uproar, the inhabitants of the town rushed up to their roofs to ascertain what was happening, and their cries of wild terror and alarm at seeing the Turkish banner on the walls added to the confusion. D'Aubusson sprang up from the couch, on which he had thrown himself in full armour, at the first sound of the alarm, and, sending off messages to all the auberges to summon every man to the defence, ran down into the town, followed by a small party of knights. Rushing through the streets, now filled with half dressed people wild with terror, he reached the foot of the wall, whose summit was crowded with the enemy, and saw in an instant that all was lost unless they could be driven thence without delay. The effect of his presence was instantaneous. The knights, hitherto confused and dismayed, rallied at once, and prepared for the desperate undertaking. The bank on the inside was almost perpendicular, and those charged with its defence had used two or three ladders for ascending to the rampart. These were at once seized and planted against the wall.