Never before had the Mamelukes encountered a shell-fire, and the destruction wrought by these novel missiles bursting among them caused them to retire at full speed, leaving three or four hundred dead behind them, and abandoning some of the guns they had placed in position before Chebreisse. A large Arab force had been drawn up in front of the town when the Mamelukes charged, in readiness to follow the latter as soon as they had broken the French ranks. This was the first opportunity that Edgar had had of seeing any considerable body of this famous cavalry, and he acknowledged that nothing could be more superb than their appearance. The splendour of their dress, the beauty of their horses, and magnificence of their arms and trappings excited his admiration to the highest.

"Now you will see," the sheik said exultingly, "how they will gallop over the Franks!"

Edgar said nothing, but sat watching the splendid array as they swept down upon the French line. Each of the French divisions was formed up in square, with the artillery and dismounted cavalry in the intervals. The volleys of musketry that received the charging Mamelukes was sufficient to quell the ardour of the boldest horsemen in the world. In vain, before drawing off, they circled round and round the French formation, seeking for some weak spot upon which they could hurl themselves, and when at length they drew off, the French soldiers ran out from their ranks to plunder the fallen.

In silence the Arabs followed the Mamelukes, and the chief did not say a word until they had ridden, at a leisurely pace, some distance beyond the town.

"You were right," he said at last to Edgar. "I did not think that any men on foot could have resisted that charge, but the Franks stood as steadily as if it were a flock of sheep that was approaching them. The cannon are terrible. Who would have thought that the balls they shoot would explode and fly into pieces when they reach their mark! How is it done?"

Edgar explained as well as he was able the nature of shells, and how, when they were fired, a fuse was lighted of a length just sufficient to burn down to the powder within the ball at the time it reached the object at which it was fired.

The fight on the river had been more severe, and had been maintained with great obstinacy. At one time two gun-boats were taken by the Egyptians. These, however, were recaptured, and the admiral's ship burnt. Admiral Perrè, who commanded the first flotilla, was wounded by a cannon-ball, and the loss on both sides was severe.

For eight days the French continued to march forward. They suffered terrible hardships, and at times were almost in a state of mutiny. The interminable extent of sand utterly dispirited them, and they came to believe that all that they had heard of Egypt was false, and that they had been deliberately sent there by the directory to die. They doubted even the existence of Cairo. Some, in their despair, threw themselves into the river and were drowned. Many died on the march, less from sunstroke and exhaustion than from despair. At last the Pyramids came in sight, and their spirits rose again, for here, they were told, the whole army of Mamelukes, Janizaries, and Arabs were assembled to give battle, and they hoped therefore to terminate the campaign at a blow.

During the whole march they were harassed by the Arabs, and many were cut off and killed. Marches were always performed at night, and at ten o'clock in the morning they halted for the day, preparing themselves for slumber by a dip in the Nile. On the 21st of July they advanced from Omdinar, and at ten o'clock made out the enemy drawn up in line of battle. They had constructed a large entrenched camp, with forty pieces of ancient cannon incapable of movement. In this camp were 20,000 infantry, Janizaries, Spahis, and militia from Cairo. On the right were the Mameluke cavalry, some 10,000 strong, with one or two foot-soldiers to each horseman. To the left of the Mamelukes, and between them and the Pyramids, were some 3000 Arab horse.

The French army was drawn up in the same order as in their last fight, in great squares of divisions, the left resting on the Nile, and the right on a large village. Napoleon, with his staff, reconnoitered the enemy's entrenched camp, and by means of telescopes discovered that the cannon were not upon field-carriages, but were simply heavy ship guns that had been taken from their flotilla, and were served by the sailors. They, therefore, could not be moved, and it was evident that if the infantry left the camp they must do so without guns. The entrenchment itself was not formidable; it had been begun but three days before, and although it might be impracticable for cavalry, it would offer no serious obstacle to an attack by infantry.