He was now well beyond the district held by the French south of the Douro, and, obtaining a number of boats, crossed the river, and then made for Mirandella on the river Tua, and halted some distance from the town, having made a march of over seventy miles in two days. Learning from the peasants that there were no French troops west of the Tamega, he marched the next day to the crest looking down into the valley, and here halted until he could learn that Soult was retreating, and what road he was following. He had not long to wait for news, for, on the night of the 9th, while he was on his march by the Vouga, the British force had moved forward to Aveiro. Hill's division had there taken boats, and proceeding up the lake to Ovar, had landed at sunrise on the 10th, and placed himself on Franceschi's right.
In the meantime Paget's division had marched to Albergaria, while Cotton's division and Trant's command moved to turn Franceschi's position on its right. The darkness and their ignorance of the roads prevented the movement being attended with the hoped-for success. Had the operation been carried out without a hitch, Franceschi and Mermet would both have been driven off the line of retreat to the bridge of Oporto, and must have been captured or destroyed. As it was, Franceschi fell back fighting, joined Mermet's division at Crijo, a day's march in the rear, and although the whole were driven on the following day from this position, they retired in good order, and that night effected their retreat across the bridge of boats, which was then destroyed.
As Franceschi's report informed Soult that the whole force of the allies was now upon him, he at once sent off his heavy artillery and baggage by the road to Amarante. Mermet was posted at Valongo, with orders to patrol the river and to seize every boat. Those at Oporto were also secured. On the morning of the 12th the British force was concentrated behind the hill of Villa Nova, and Sir Arthur took his place on the top of the Serra Convent, from whence he commanded a view of the city and opposite bank. He saw that the French force was stationed for the most part below Oporto. Franceschi's report had led Soult to believe that Hill's division had come by sea, and he expected that the transports would go up to the mouth of the Douro, and that the British would attempt to effect a landing there.
The river took a sharp turn round the Serra Convent, and Sir Arthur saw that another large convent on the opposite bank, known as the Seminary, was concealed by the hill from Soult's position, and that it might be occupied without attracting the attention of the French. After much search a little boat was found; in this a few men crossed and brought back two large boats from the opposite side of the river. In these the troops at once began to cross, and two companies had taken possession of the convent before Soult was aware of what was going on. Then a prodigious din arose. Troops were hurried through the town, the bugles and trumpets sounded the alarm, while the populace thronged to the roofs of their houses wildly cheering and waving handkerchiefs and scarves, and the church bells added to the clamour.
Three batteries of artillery had been brought up close to the Serra Convent, and now that there was no longer need of concealment these were brought forward, and--as the French issued from the town and hurried towards the post held by the two companies that had crossed--opened a heavy fire upon them. The French pushed on gallantly in spite of this fire and the musketry of the soldiers, but the wall of the convent was strong, more boats had been obtained, and every minute added to the number of the defenders. The attack was, nevertheless, obstinately continued. The French artillery endeavoured to blow in the gate, and for a time the position of the defenders was serious, but the enemy's troops were now evacuating the lower part of the town, and immediately they did so the inhabitants brought boats over, and a brigade under Sherwood crossed there.
In the meantime General Murray had been sent with the German division to effect a passage of the river two miles farther up. Soult's orders to take possession of all the boats had been neglected, and it was not long before Murray crossed with his force. The confusion in the French line of retreat was now terrible. A battery of artillery, who brought up the rear, were smitten by the fire of Sherwood's men; many were killed, and the rest cut their traces and galloped on to join the retreating army. Sherwood's men pressed these in the rear, the infantry on the roof of the Seminary poured their fire on the retiring masses, and the guns on the Serra rock swept the long line.
Had Murray now fallen upon the disordered crowd their discomfiture would have been complete, but he held his force inactive, afraid that the French might turn upon him and drive him into the river. General Stewart and Major Harvey, furious at his inactivity, charged the French at the head of two squadrons of cavalry only, dashed through the enemy's column, unhorsed General Laborde and wounded General Foy. Receiving, however, no support whatever from Murray, the gallant little band of cavalry were forced to fight their way back with loss. Thus, as Franceschi had been saved from destruction from an error as to the road, Soult was saved the loss of this army by Murray's timidity, and in both cases Sir Arthur's masterly plans failed in attaining the complete success they deserved.
Terence had engaged several peasants to watch the roads leading from Oporto, and as soon as he learned that a long train of baggage and heavy guns was leaving the city by the road to Amarante, he crossed the valley, took up a position on the Catalena hill flanking the road, and as the waggons came along opened a sudden and heavy fire upon them. Although protected by a strong guard the convoy fell into confusion, many of the horses being killed by the first volley. Some of the drivers leapt from their seats and deserted their charges, others flogged their horses, and tried to push through the struggling mass. An incessant fire was kept up, but just as Terence was about to order the whole corps to charge down and complete the work, a large body of cavalry, followed by a heavy body of infantry, appeared on the scene.
This was Merle's division, that had hastened up from Valonga on hearing the firing. The advance of the cavalry was checked by the musketry fire, but Merle at once ordered his infantry to mount the hill and drive the Portuguese off. The latter stood their ground gallantly for some time, inflicting heavy loss upon their assailants. Terence saw, however, that he could not hope to withstand long the attack of a whole French division, and leaving two companies behind to check the enemy's advance, he marched along the crest of the hill until he came upon the road crossing from Amarante to the Ave river.
By this time he had been joined by the rear-guard, who had retired in time to make their escape before the French reached the top of the hill. Merle posted a brigade along the crest of the ridge to prevent a repetition of the attack, and to cover Soult's line of retreat, if he were forced to fall back; while Terence took up his position near Pombeiro, whence he presently saw the convoy enter Amarante. He had the satisfaction, however, of noticing that it was greatly diminished in length, a great many of the waggons having been left behind owing to the number of horses that had been killed. His attack had had another advantage of which he was unaware, for it had so occupied Merle's attention that he had neglected to have all the boats taken across the river, which enabled Murray's command to cross the next day, an error which, had Murray been possessed of any dash and energy, would have proved fatal to the French army.