By the 19th of January two practicable breaches were made in the walls of the town, and an attack was ordered. Our colonel volunteered for the forlorn hope, but it was put under other commanders, being chiefly composed of the rifles. The main breach was committed to General Picton's division, and the brigades of General Vandeleur and Colonel Barnet were ordered to attack the smaller breach, headed by a storming-party of three hundred men and a forlorn hope, under Major George Napier of the Fifty-second regiment. The forlorn hope assembled between seven and eight o'clock under the walls of the convent we were then occupying, which protected them a little from the enemy's shot. All was deathly silent amongst those men, who perhaps could not help thinking that it might be their last undertaking: in fact, this is much the worst business a soldier can enter upon, as scarcely anything but death looks him in the face. There they were watching with intense anxiety for the to many fatal signal; and at length the order was given to advance.
The assault was to be conducted on all sides at once, and in double quick time the troops were at the breach, although the ladders, which were being carried by the Portuguese, when wanted had disappeared. Our troops nevertheless pushed onwards and gained the breach, when either through accident or the neglect of the train-man, a mine was sprung before the French were clearly off it, and both French and English were suddenly blown into the air and buried together in the ruin. After the smother had fairly cleared away, our troops met with very little difficulty in mounting the breach and scouring the ramparts, the French throwing down their arms and retiring into the town itself, where after a brief contest in the streets, the whole surviving garrison surrendered; but it was not without the loss of many of the bravest men on our side in the first assault.
This successful achievement was attended with all the horrors of the soldiery, excesses, riot, and drunkenness taking place on every side. Houses were plundered of their contents, cellars broken open and emptied, and many houses were even set on fire, amid the yells of the dissipated soldiers and the screams of the wounded. Thus the night passed, but in the morning order was a little restored, and those men who were sensible enough returned to their own regiments.