The governor, Arnold Groenvelt, consulted with the English leaders, and decided that the enemy must be driven off this dyke immediately, or that the safety of the city would be gravely imperilled. They therefore assembled a force of four hundred men, sallied out of the south gate, where two bastions were erected on the dyke itself, and then advanced along it to the assault of the Spaniards. The battle was a desperate one, the English and Dutch were aided by their comrades on the wall, who shot with guns and arquebuses against the Spaniards, while the latter were similarly assisted by their friends along the outer edge of the moat, and received constant reinforcements by boats from their ships. The odds were too great for the assailants, who were forced at last to fall back along the dyke to the south gate and to re-enter the town. It was already five weeks since the English had arrived to take part in the defence, and the struggle now began upon a great scale--thirty cannon and eight culverins opening fire upon the walls. The heaviest fire was on St. James' day, the 25th of July, when 4000 shots were fired between three in the morning and five in the afternoon. While this tremendous cannonade was going on, the boys could not but admire the calmness shown by the population. Many of the shots, flying over the top of the walls, struck the houses in the city, and the chimneys, tiles, and masses of masonry fell in the streets. Nevertheless the people continued their usual avocations. The shops were all open, though the men employed served their customers with breast and back pieces buckled on, and their arms close at hand, so that they could run to the walls at once to take part in their defence did the Spaniards attempt an assault upon them. The women stood knitting at their doors, Frau Menyn looked as sharply after her maids as ever, and washing and scouring went on without interruption. "I believe that woman will keep those girls at work after the Spaniards have entered the city, and until they are thundering at the door," Lionel said. "Who but a Dutch woman would give a thought to a few particles of dust on her furniture when an enemy was cannonading the town?" "I think she acts wisely after all, Lionel. The fact that everything goes on as usual here and in other houses takes people's thoughts off the dangers of the position, and prevents anything like panic being felt." The lads spent the greater part of the day at their look-out, and could see that the wall against which the Spanish fire was directed was fast crumbling. Looking down upon it, it seemed deserted of troops, for it would be needlessly exposing the soldiers to death to place them there while the cannonade continued; but behind the wall, and in the street leading to it, companies of English and Dutch soldiers could be seen seated or lying on the ground.