But in the solitude of her own chamber the heart of Agnes sank at the thunder of the cannonade, when she thought of those so dear to her exposed to hourly peril; and when a group of men were seen bearing a wounded or dying comrade from the quarter where her father or her lover were engaged, a feeling of sickening apprehension would come over her; and often with faint steps she would hurry forth to see the face of the dying man. Then she would reproach herself for weakness, resolving, for the future, not to anticipate the evil day; and would prepare to cheer with bright smiles the return of weary friends, when the combat and the watch were over.

They needed all that could be done, indeed, to keep up their spirits in the contest that was going on; for day by day, and hour by hour, notwithstanding every effort of the garrison, notwithstanding an amount of courage on the part of the citizens which no one had anticipated, the enemy gained ground. To Herbert it was a bitter disappointment as well as grief; for, calculating with the experience of long years of war, he felt sure, that when Tilly commenced the siege, the forces of the Bavarian general were inadequate to the task he had undertaken, and that Heidelberg could hold out for months, if it were defended as he was resolved it should be. But two or three days after the siege commenced, fresh bodies of troops appeared in quarters where they had not been expected; a greater number of pieces of heavy ordnance than had been in the imperial camp on the fourteenth of August, opened their fire on the town and castle on the nineteenth; and the report became rife, that the general of the besieging army had been reinforced by ten thousand men from the forces of the Archduke. The English officer became moody and desponding; and, though in the hour of danger and of combat he was full of fire and energy, filling the soldiers by his very look with courage and determination like his own, yet, when he returned to his lodging in the castle, he would fall into long fits of silence, gaze upon the ground with a gloomy eye, or pore over a plan of the defences, and sadly shake his head.

The operations of the siege were at first confined to the left bank of the Neckar; and the communication between the town and country on the right bank by the road over the covered bridge, was unimpeded, except by occasional parties of cavalry, who would pillage the peasantry, bringing in provisions, unless protected by a strong guard. The supply of the city, however, was facilitated by the exertions of the Baron of Oberntraut and his small force; and his very name had become so terrible to the imperial troops, that the enemy's cavalry would withdraw in haste at the very first news of his approach. Often, indeed, he came upon them unaware like a quick thunderstorm; and almost daily news arrived in the place of this regiment of Croats, or that body of Cossacks, having been defeated by Oberntraut, and driven over the river in terror and confusion. He himself, however, never appeared within the walls till one evening in the month of September. From the batteries above the Pheasant-garden a tremendous fire was kept up during the greater part of that whole day upon the defences of the castle and the town. The elements, too, seemed to fight on behalf of the enemy. One of the most awful tempests that a land, prolific in storms, had ever witnessed, swept the valley of the Neckar. Lightning and hail filled the air. The thunder almost drowned the cannonade; and about four o'clock, the wind, which had been rising for some time, increased to a hurricane. Chimneys were blown down; houses were unroofed; men and women were killed in the streets by the falling masonry; and in the midst of the terror and confusion which this awful phenomenon created, the Bavarian commander ordered a general assault to be made on the defences of the town and the castle. Merven, about two-thirds of the garrison, and a large body of the armed citizens presented themselves to defend the place, from what was then called the Spire's gate, to a spot where the walls of the town joined those of the castle. Herbert, with Algernon Grey, the Dutch troops, and the English volunteers, together with two hundred Palatinate infantry, undertook to repel the enemy in their attempt to storm the castle.

The cannonade on both sides was tremendous, as the imperial troops marched steadily to the assault; and from the top of the round tower at the angle of the great casemate, Colonel Herbert watched their approach, anxiously calculating to what point their efforts would be directed; while several inferior officers stood beside him, to carry his orders to Algernon Grey and others who were in command of the troops in the outworks. Suddenly, as he stood and watched, he perceived the fire of several of the largest of the enemy's guns turned in the direction of the lower part of the town, and, as it seemed to him, upon the bridge; but from the spot where he stood, he could not discover what was taking place in that part of the city. After a moment's consideration, he pointed with his hand towards the outworks which crossed the Pheasant-garden, and to the small battery on the mount at the angle, which commanded the trench towards the Ape's Nest fort, lost in the early part of the siege.

"There will be the principal attack," he said, speaking to the officers near him. "Speed away, Wormser, to the troops near the bathhouse, and order them to detach fifty men to reinforce the battery. I must away to see what is going on down there; but I will join them in the Pheasant-garden in a few minutes."

"You will see best from the block-house, sir, by the Carmelite-wood, where the English volunteers are posted," said one of the officers who had marked the fire directed upon the lower part of the town; "I dare say the Earl can tell you what is going on."

Herbert made no reply, but hurried away as fast as he could go, seeing two more guns brought to bear upon the town, towards the river. Hurrying through the great casemate, and thence across the gardens, the balls fell thick about him from the lesser guns of the Bavarian batteries. Every moment some of the fine rare trees, collected from all parts of the world, at an enormous expense, crashed under the shot, or fell, torn asunder, strewing the ground with fruits and flowers, such as Europe seldom saw. The vice and the folly of unnecessary war is never, perhaps, more strongly felt than when its destructive effects are seen amongst all the fair and beautiful objects which the peaceful arts have gathered or produced. But the thoughts and feelings of Herbert at that moment were those of the warrior alone: the thoughtful and contemplative man, which he had appeared in calmer days, was cast away, and the lion was roused within him. The trees, in whose shade and in whose appearance he had delighted, he now cursed, for covering in some degree the approach of the enemy, and he would willingly have ordered them all to be swept away.

Turning the angle of the Pheasant-garden, he soon reached the block-house, where Algernon Grey, with his band of Englishmen, supported by a company of Dutch infantry, had been stationed, as soon as the preparations for an assault had been perceived; and as he reached the foot of the mound, the young Earl came down to meet him, asking, "Have you seen my messenger?"

"No," answered Herbert, quickly. "What news from below there?--they seem firing upon the bridge."

"The wind has carried off the roof," said Algernon Grey, "and there is a great firing near the gate tower on the other side. One cannot well see what is taking place for the smoke and the tower; but fresh troops seem coming up from Neunheim and the plains."