On the 27th and 28th of October, just one year after Zumalacarregui had taken command of the Carlist army, occurred the two famous actions in the plains of Vittoria, when General O'Doyle and two thousand Christinos fell into the hands of the victors, and nearly as many more were left dead upon the field. O'Doyle and some of the officers taken were shot; but the lives of the men were spared, and soon afterwards, at their own request, their arms were restored to them, and they were incorporated in the Carlist battalions. This, and other disasters, which about this time befell Rodil's army, occasioned his recall by the Queen's government, and the celebrated Mina was appointed in his stead.

The increase of Zumalacarregui's forces, and the advantages he had gained, inspired him with the idea of capturing some of the Christino forts in Navarre and the Basque provinces; the said forts being exceedingly prejudicial to his operations. The great obstacle to his wishes was, the weakness of his artillery. This consisted only of three small field-pieces, such as are carried on the backs of mules, and could be of little service in attacking fortifications. Of shot and shell he had a large supply, which had been taken at the manufactory of Orbaiceta. For seven or eight months these stores had been lying there neglected, none of the Queen's generals having had the foresight to remove them to a place of safety. Zumalacarregui now caused them to be taken away, and concealed in the most intricate recesses of the mountains. But these projectiles were of little use without guns; and to procure the latter the ingenuity of the Carlists was taxed to the very utmost. Zumalacarregui remembered that, upon a sandy spot on the Biscayan coast, an old iron twelve-pounder was lying neglected and forgotten. This he ordered to be brought to Navarre. A rude carriage was constructed, on which it was mounted, and it was then dragged by six pair of oxen over mountains, and through ravines, to the Sierra of Urbasa, where it was buried. Soldiers are very ingenious in inventing appropriate names; and as soon as the Carlist volunteers saw this unwieldy old-fashioned piece of ordnance, full of moss and sand, and covered with rust, they christened it the Abuelo, or the Grandfather, by which appellation it was ever afterwards known. The only artillery officer at that time with Zumalacarregui was Don Tomas Reina, who now, in conjunction with one Balda, a professor of chemistry, began to devise means for founding some guns. In the villages and hamlets within a certain circumference, a requisition was made for all articles composed of copper and brass, such as brasiers, stew-pans, chocolate pots, warming-pans, &c.; but as it was found impossible to get sufficient of these, the three field-pieces were added, and the whole melted together. In the midst of a forest this strange foundery was established, and after numerous failures, occasioned by want of experience and of the proper tools, Reina succeeded in making a couple of howitzers, which, although of uncouth appearance, it was thought might answer the purpose for which they were intended.

Never were the Christinos more confident of a speedy termination to the war than when Mina took the command. The well-earned reputation of that chief, his peculiar aptitude for mountain warfare, and intimate acquaintance with the country of Navarre, which had been the scene of his triumphs during the war against Napoleon, certainly pointed him out as the most fitting man to oppose to Zumalacarregui. Forgetting that similar hopes had been founded on the skill of Quesada and Rodil, and on the imposing forces they commanded, hopes which had been so signally frustrated, the Queen's partizans now set up a premature song of triumph, soon to be turned into notes of lamentation. The Mina of 1834, old and bed-ridden, with his energies, mental perhaps as well as physical, impaired by long inaction, was a very different man from the Mina of 1810. When fighting against the French, the sympathies of the Navarrese were with him; now they were against him, and in a war of this description, that difference was of immense importance. In spite of the wintry season and of the badness of his health, one of the first things he did on assuming the command was to make an excursion to Puente la Reyna, Mañeru, and other places, where, in days gone by, he had had his headquarters, and which he had then never entered without being greeted as a hero and patriot, and welcomed with enthusiastic vivas. He flattered himself that this enthusiasm would be again awakened by his appearance; and was so much the more shocked when he found himself received with the utmost coldness and indifference. His illness was aggravated by disappointment, and he returned angry and disgusted to Pampeluna. Thence, incapacitated by his infirmities from exerting himself in the field, he directed from his cabinet the operations of his lieutenants, and issued orders, the cruelty of some of which soon caused his name to be as much execrated in Navarre as it had there once been venerated. At no period of the war was less mercy shown to each other by the contending parties than during Mina's command. Besides shooting all prisoners taken with arms in their hands, he caused the wounded whom he found in the Carlist hospitals to be slain upon their beds, and garroted or strangled a gentleman of Pampeluna, for no reason that could be discovered except that he had two sons with the Carlists. Several forts having about this time being taken or battered by Zumalacarregui, Mina determined to get possession of the guns with which this had been done. He was aware of the difficulty the Carlists had in obtaining artillery; and knowing that it could not easily be transported from one place to another in that rugged and mountainous country, he conjectured that they were in the habit of burying it, which was actually the case. In order to obtain information as to the whereabout of the mortars with which the enemy had been shelling Elizondo, he decimated the male inhabitants of Lecaros, and then burnt the village itself to the ground. Such atrocities as these, far from advancing the cause of Queen Isabel, materially injured it, offering as they did a strong contrast with the conduct of Zumalacarregui, who, at the taking of Los Arcos, Echarri-Eranaz, and other places, had shown mercy, and even great kindness, to the wounded and prisoners he took. At last Mina having ventured out in person with a division of the troops, carried in a litter because he too ill to sit his horse, was signally beaten by Zumalacarregui at a place called Siete Fuentes, or the Seven Fountains, and himself narrowly escaped being taken prisoner. Soon after this disaster he was deprived of the command, having done nothing whilst he held it but lose men and forts, and exasperate the Navarrese peasantry to an unparalleled extent.

An attempt that was made about this time to assassinate Espartero, who then commanded a moveable column in Biscay, is thus narrated by General Zaratiegui:—

"The constant passage of Espartero between Bilboa and Orduna, inspired a peasant, who occupied a farmhouse near Luyando, with the idea of attempting that general's life. It was said that the man had been robbed or ill-treated by the soldiers of Espartero's division; but it is quite as probable that the peasant fancied in his simplicity, that if he could kill the Christino general, the war and the evils it inflicted on his country would be at an end. Taking a large tree trunk, he fashioned it into a sort of cannon, fixed it at a spot where it commanded the high-road, and loaded it to the very mouth. The next time Espartero passed that way, the peasant watched his moment, set fire to the fuse of this singular piece of artillery, and then ran away. The Christino soldiers hurried to the spot whence the explosion had proceeded, and found the wooden cannon burst into fifty pieces. It was evidently the act of an individual; but nevertheless the unlucky village of Luyando, being the nearest to the scene of the event, was immediately set on fire. Out of the sixty houses composing it, more than one half were consumed; and if the others escaped, it was merely because the Christinos happened to want them at the moment for their own occupation."

Valdes was the last Christino general opposed to Zumalacarregui. Being minister of war at the time of Mina's dismissal from the command, he ordered all the troops that could possibly be spared to march to Navarre, and himself followed to direct their operations. Upon his appearance the war assumed a more humane character; and soon afterwards the arrival of the British commissioner, and his successful intervention, put an end to the system of reprisals, although after Zumalacarregui's death it was again more than once resorted to by the most ferocious of the leaders on either side. In honour of Lord Eliot, Zumalacarregui set at liberty the prisoners he had made in the recent action of the Amezcoas, in which Valdes had been roughly handled. Lord Eliot having expressed a wish for an autograph of the Carlist leader, Zumalacarregui took a pen and wrote, in Spanish, as follows:—

"At Asarta, a village of the valley of Berrueza, celebrated for the various combats which have occurred there in the course of the present century, the honour of receiving his Excellency Lord Eliot was enjoyed, on the 25th April 1835, by Tomas Zumalacarregui."

Colonel Gurwood made the Carlist chief a present of an excellent field glass, which had been used by the Duke of Wellington on some occasion during the Peninsular war. "This telescope was so esteemed by Zumalacarregui," says his biographer, "that as long as he lived he always carried it with him; and at the present day, in spite of its trifling intrinsic value, it is treasured by his family as the most precious heir-loom they possess."

The non-success of Valdes's expedition to the valleys of the Amezcoas, and the fatigues and losses sustained there by his troops, had greatly discouraged the latter. On all sides the Carlists were obtaining advantages, and their adversaries began to entertain a panic terror of Zumalacarregui, who availed himself of this discouragement and temporary inaction of the foe to attack several fortified places. Amongst others, the town of Treviño, situated between Vittoria and the Ebro, and at only three or four hours' march from the cantonments of Valdes's army, fell into the hands of the Carlists. Assembling thirteen battalions at the Venta of Armentia, Zumalacarregui brought up his artillery, consisting of one cannon and one howitzer, with which in two days he forced the place to capitulate. Although Valdes, from where he was, could hear the sound of the guns, he did not venture to show himself till the Carlists had destroyed the fortifications, and effected their retreat with prisoners and artillery.

It was after this successful expedition, and at what may be considered the most fortunate period of Zumalacarregui's career, that Don Carlos conceived the idea of conferring a title on him. He caused this to be intimated to the general, and also that he was only waiting to know what title it would be the most agreeable to him to receive. "We will talk about it," replied Zumalacarregui, "after entering Cadiz. As yet we are not safe even in the Pyrenees, and a title of any kind would be but a step towards the ridiculous." It was not till eleven months after his death that Don Carlos issued a decree, making him grandee of Spain, by the titles of Duke of Victory and Count of Zumalacarregui.