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.
They were leaning out of the dormer-window in the high roof watching the Spanish soldiers in the batteries working their guns, when, happening to look round, they saw a crossbow protruded from a window of the warehouse to their right, and a moment afterwards the sharp twang of the bow was heard. There was nothing unusual in this; for although firearms were now generally in use the long-bow and the cross-bow had not been entirely abandoned, and there were still archers in the English army, and many still held that the bow was a far better weapon than the arquebus, sending its shafts well nigh as far and with a truer aim.
"If that fellow is noticed," Geoffrey said, "we shall have the Spanish musketeers sending their balls in this direction. The governor has, I heard Captain Vere say, forbidden shooting from the warehouses, because he does not wish to attract the Spanish fire against them. Of course when the wall yields and the breach has to be defended the warehouses will be held, and as the windows will command the breach they will be great aids to us then, and it would be a great disadvantage to us if the Spaniards now were to throw shells and fire-balls into these houses, and so to destroy them before they make their attack. Nor can much good be gained, for at this distance a cross-bow would scarce carry its bolts beyond the moat."
"Most likely the man is using the cross-bow on purpose to avoid attracting the attention of the Spaniards, Geoffrey. At this distance they could not see the cross-bow, while a puff of smoke would be sure to catch their eye."
"There, he has shot again. I did not see the quarrell fall in the moat.
See, one of the Spanish soldiers from that battery is coming forward.
There, he has stooped and picked something up. Hallo! do you see that?
He has just raised his arm; that is a signal, surely."
"It certainly looked like it," Lionel agreed. "It was a sort of half wave of the hand. That is very strange!"
"Very, Lionel; it looks to me very suspicious. It is quite possible that a piece of paper may have been tied round the bolt, and that someone is sending information to the enemy. This ought to be looked to."
"But what are we to do, Geoffrey? Merely seeing a Spanish soldier wave his arm is scarcely reason enough for bringing an accusation against anyone. We are not even sure that he picked up the bolt; and even if he did, the action might have been a sort of mocking wave of the hand at the failure of the shooter to send it as far as the battery."
"It might be, of course, Lionel. No, we have certainly nothing to go upon that would justify our making a report on the subject, but quite enough to induce us to keep a watch on this fellow, whoever he may be. Let us see, to begin with, if he shoots again."
They waited for an hour, but the head of the cross-bow was not again thrust out of the window.
"He may have ceased shooting for either of two reasons," Geoffrey said. "If he is a true man, because he sees that his bolts do not carry far enough to be of any use. If he is a traitor, because he has gained his object, and knows that his communication has reached his friends outside. We will go down now and inquire who is the occupier of the next warehouse."
The merchant himself was not below, for as he did business with other towns he had had nothing to do since Sluys was cut off from the surrounded country; but one of his clerks was at work, making out bills and accounts in his office as if the thunder of the guns outside was unheard by him. The boys had often spoken to him as they passed in and out.
"Who occupies the warehouse on the right?" Geoffrey asked him carelessly.
"William Arnig," he replied. "He is a leading citizen, and one of the greatest merchants in our trade. His cellars are the most extensive we have, and he does a great trade in times of peace with Bruges, Ghent, Antwerp, and other towns."
"I suppose he is a Protestant like most of the towns-people?" Geoffrey remarked.
"No, he is a Catholic; but he is not one who pushes his opinions strongly, and he is well disposed to the cause, and a captain in one of the city bands. The Catholics and Protestants always dwell quietly together throughout the Low Countries, and would have no animosities against each other were it not for the Spaniards. Formerly, at least, this was the case; but since the persecutions we have Protestant towns and Catholic towns, the one holding to the States cause, the other siding with the Spaniards. Why do you ask?"
"Oh, I hadn't heard the name of your next neighbour, and was wondering who he might be."
The boys had now been nearly two months in Holland, and were beginning to understand the language, which is not difficult to acquire, and differed then even less than now from the dialect spoken in the eastern counties of England, between whom and Holland there had been for many generations much trade and intimate relations.
"What had we better do next, Geoffrey?" Lionel asked as they left the warehouse.
"I think that in the first place, Lionel, we will take our post at the window to-morrow, and keep a close watch all day to see whether this shooting is repeated. If it is, we had better report the matter to Captain Vere, and leave him to decide what should be done. I do not see that we could undertake anything alone, and in any case, you see, it would be a serious matter to lay an accusation against a prominent citizen who is actually a captain of one of the bands."
Upon the following day they took their post again at the window, and after some hours watching saw three bolts fired from the next window. Watching intently, they saw the two first fall into the moat. They could not see where the other fell; but as there was no splash in the water, they concluded that it had fallen beyond it, and in a minute they saw a soldier again advance from the battery, pick up something at the edge of the water, raise his arm, and retire. That evening when Captain Vere returned from the ramparts they informed him of what they had observed.
"Doubtless it is an act of treachery," he said, "and this merchant is communicating