Hill, though dangerously delayed by the difficulty of restoring the bridge of Merida, which he had himself destroyed during the siege of Badajos, crossed the Guadiana with six thousand men, twelve field-pieces, pontoons, battering-train and fifty country carts, conveying material and ammunition. On the 15th he reached Truxillo, and during his march the guerillas of the Guadalupe mountains made demonstrations at different points, between Almaraz and Arzobispo, as if seeking a place to cast a bridge that he might join Wellington. Foy was deceived by these feints, for his spies at Truxillo, while reporting the passage of the Guadiana, said Hill had fifteen thousand men, and that two brigades of cavalry were following: one report even stated that thirty thousand men had entered Truxillo, whereas there were less than six thousand of all arms. Early on the 16th the armament reached Jaraicejo, formed three columns, and made a night march, intending to surprise at the same moment, the tower of Mirabete, the fortified house in the pass, and the forts at the bridge of Almaraz. The left column, directed against the tower, was commanded by General Chowne. The centre, with the dragoons and artillery, moved by the royal road under General Long. The right, composed of the 50th, 71st, and 92nd Regiments, under Hill in person, was to penetrate by the narrow and difficult way of Roman Gordo against the forts of the bridge; but day broke before any column reached its destination, and all hopes of a surprise were extinguished. This was an untoward beginning, unavoidable with the right and centre column because of the bad roads, but Chowne was negligent, for the Mirabete tower might have been assaulted before daylight. Hill now saw that to reduce the Mirabete works in the pass he must incur more loss than was justifiable, and be in such plight that he could not finally carry the forts below; yet it was only through the pass the artillery could move against the bridge. In this dilemma, after losing the 17th and part of the 18th, in fruitless attempts to discover some opening through which to reach Almaraz with his guns, he resolved to leave them on the Sierra with the centre column, make a false attack on the tower with Chowne’s troops, and in person, with the right column, secretly penetrate by the scarcely practicable line of Roman Gordo to the bridge, intent, with infantry alone, to storm works which were defended by eighteen pieces of artillery and powerful garrisons!