The news of the fighting had been carried by active men all over the country. It was evident that the farther advance of the Legion would place them in possession of the main road to France, and reinforcements were called up from all sides. Already Evans was opposed by a force far more numerous than his own, and when the news of his advance arrived every Carlist within fifty miles was on the road. Espartero, who was with his army round Bilbao, had promised to march, and General Saarsfield, who commanded another royal army, was also to have moved, so as to occupy the enemy's attention, but neither had done so. The Carlist army had been, a week before, withdrawn from before Saarsfield, and during the night of the 15th, ten thousand men slipped away from the force facing that of Espartero and crossed the mountains to assist their friends.
Espartero himself had ridden, when he heard of the progress that Evans was making, to see with his own eyes how matters were going on. The fighting had again begun, and the Carlists had already been driven back into the town of Hernani, when Don Sebastian, one of the sons of Carlos, arrived with ten thousand infantry and three hundred cavalry. These marched out, column after column, and the vast superiority of numbers enabled them to not only show in force in face of the allied army, but to threaten both its flanks. For a time the Legion and its Spanish allies held their ground firmly, but they had considerably more than twice their number opposed to them, and the flanks were gradually driven in towards the centre. The Rifles, who were on one flank, had fought with obstinate bravery; and on the other, two Irish regiments stubbornly faced an overwhelming force of Carlists, and were engaged in a hand-to-hand fight with them. Colonel Cotter, of the 9th Cork, was conspicuous for his gallantry. Alone he rode repeatedly into the leading Carlist ranks, until he was completely surrounded and fell fighting to the last.
The 6th, 7th, and 8th Regiments, who were in reserve, were soon drawn forward into the fight. The 6th were first called up. The whole of the Carlist cavalry dashed forward to attack the leading company, which alone was available to meet them, but were received with such a tremendous volley that they were driven backward in great confusion, with immense loss. Two howitzers of the Marine Artillery sent showers of grape among them, and of the fine regiment which had advanced, a shattered group of fugitives returned. The Carlists, working round, threatened the artillery, and these were only saved by desperate charges of the Lancers and the staunchness of two companies of the 6th. The Spanish regiments fought but badly, and by their retreat exposed the Legion to a heavy cross-fire, which compelled them to fall back. The 8th, the last regiment of the reserve, who had been lying concealed in a hollow, were then called up. Two hundred of the wounded had been left behind in a large house, and these, as the Carlists advanced, were bayoneted to a man. The 8th went boldly forward, and, answering nobly to Colonel Hogg's call upon them to charge, rushed under a tremendous fire to a wall, on the other side of which a strong force of the Carlists stood, while many were already crossing it.
The 8th dashed forward and bayoneted all who had crossed the wall, and for a time fought the Carlist battalion crowded behind it; but other troops were pushing on both to the right and left, so, threatened on both flanks and with an overpowering force in front, the 8th sullenly fell back. Broken up into parties, they still fought desperately, and were only saved by a furious charge by the Lancers. The Carlists, unprepared for cavalry, broke in confusion, and thus the survivors of the 8th were able to draw off. The regiments of Chapelgorris had distinguished themselves during the day. They had refused to be brigaded with the other Spanish regiments, but fought by the side of the British with the most desperate valour; they were indeed almost annihilated. Nevertheless, the few survivors of these and the 8th nobly beat back an attack of the Carlists. There was a regiment of Royal Marines on the ground, but these were prevented by Lord John Haye, who commanded them, from taking any prominent part in the fight, and they lost but eighteen men wounded and none killed, while the Legion had lost very many hundreds, two or three regiments being almost wiped out. The retreating force passed the height of Venta, which they had so gallantly won four days before, and only halted when they reached the lines they had occupied previous to the 10th.
Arthur had borne his full share in the incidents of that terrible day. He had fought as fearlessly as the best, and had brought the remains of his company out of the fray, his captain being among the many officers who had fallen. So great had been the slaughter that he found himself at the end of the day high in the list of lieutenants. He had received three wounds, but all were slight. He had broken his sword in a hand-to-hand encounter with a Carlist officer, but had ended the fight by striking his opponent full in the face with the pommel, and stretching him senseless on the ground. When they reached the lines he went across to Roper's company, and to his great pleasure found that his friend had escaped with only a bullet through his arm.
"This has been a dreadful day, Mr. Hallett!"
"A terrible day, Roper! Three to one against us, I should say there were."
"But we made a stiff fight of it, sir; and the Legion has a right to be proud of itself. If the Spanish regiments had not given way, I think we might have held our own with them."
"I doubt whether we could in any case, Roper. They were altogether too strong for us. Still, we should have done better if the Spaniards had stood, and might at any rate have retired in good order to the Venta Hill, and held that against any attack the Carlists might have made. I hope I shall never see such fighting again."
"The same here," Roper said. "I think a thousand of us can do fairly well against two thousand of the Carlists; but when it comes to twenty thousand against about four thousand, the odds are too great altogether, for no one can say that the Carlists don't fight well. It was lucky, sir, that the Lancers arrived when they did, for I don't think any of us would have got away alive if it hadn't been for them. I quite made up my mind that we had all got to go down, when they came thundering up."