The French, astonished at this sudden attack upon their flank, paused and endeavoured to form up, and wheel round to oppose a front to it; but the heavy fire of the Portuguese, and the broken nature of the ground, prevented their doing this and, ignorant of the strength of the force that had thus suddenly attacked them, they recoiled, keeping up an irregular fire; while the Portuguese, pouring in steady volleys, pressed upon them. In five minutes they gave way, and retired rapidly down the hill.
The leading battalions had gained the crest where, joining those who had ascended by the other face of the hill, they fell upon the already outnumbered defenders. Donkin's men, though fighting fiercely, were pressed back, and would have been driven from their position had not General Hill brought up the 29th and 48th, with a battalion of detachments composed of Sir John Moore's stragglers. These charged the French so furiously that they were unable to withstand the assault, although aided by fresh battalions ascending the front of the hill.
In their retreat the French, instead of going straight down the hill, bore away to their right and, although some fell to the fire of the Portuguese, the greater portion passed unseen in the darkness.
The firing now ceased, and Terence ordered Bull and Macwitty to take their troops back to the ground originally selected, while he himself ascended to the crest. With some difficulty he discovered the whereabouts of General Hill, to whom he was well known. He found him in the act of having a wound temporarily dressed, by the light of a fire which had just been replenished; he having ridden, in the dark, into the midst of a French battalion, believing it to be one of his own regiments. Colonel Donkin was in conversation with him.
"It has been a very close affair, sir," he said; "and I certainly thought that we should be rolled down the hill. I believe that we owe our safety, in no small degree, to a couple of battalions of Spaniards, I fancy, who took up their post on the opposite hill this morning. Just before you brought up your reinforcement, and while things were at their worst, I heard heavy volley firing somewhere just over the crest. I don't know who it could have been, if it was not them; for there were certainly no other troops on my left."
"They were Portuguese battalions, sir," Terence said quietly.
"Oh, is it you, O'Connor?" General Hill exclaimed. "If they were those two battalions of yours, I can quite understand it.
"This is Colonel O'Connor, Donkin, who checked Soult's passage at the mouth of the Minho, and has performed other admirable services."
"You may as well make your report to me, O'Connor, and I will include it in my own to Sir Arthur."
Terence related how, just as he was taking up his position for the night along the slopes of the Sierra, he heard the outbreak of firing on the front of the hill and, seeing a large force mounting its northern slope, and knowing that only one brigade was posted there, he thought it his duty to move to its assistance. Crossing the valley at the double, he had taken them in flank and, being unperceived in the gathering darkness, had checked their advance, and compelled them to retire down the hill.
"At what strength do you estimate the force which so retired, Colonel?"
"I fancy there were eight battalions of them, but three had gained the crest before we arrived. The others were necessarily broken up, and followed so close upon each other that it was difficult to separate them; but I fancy there were eight of them. Being in such confusion and, of course, unaware of my strength, they were unable to form or to offer any effectual resistance; and our volleys, from a distance of fifty yards, must have done heavy execution upon them."
"Then there is no doubt, Donkin, Colonel O'Connor's force did save you; for if those five battalions had gained the crest, you would have been driven off it before the brigade I brought up arrived and, indeed, even with that aid we should have been so outnumbered that we could scarcely have held our ground. It was hot work as it was, but certainly five more battalions would have turned the scale against us.
"Of course, O'Connor, you will send in a written report of your reasons for quitting your position to headquarters; and I shall, myself, do full justice to the service that you have rendered so promptly
and efficaciously. Where is your command now?"
"They will by this time have taken up their former position on the opposite slope. One battalion is extended there. The other is at the foot of the hill, prepared to check any force that may attempt to make its way up the valley. Our line is about a quarter of a mile in rear of this spur. I selected the position in order that, should the French make an attempt in any force, the guns here might take them in flank, while I held them in check in front."
The general nodded. "Well thought of," he said.
"And now, Donkin, you had better muster your brigade and ascertain what are your losses. I am afraid they are very heavy."