It was in the first week of September. I was sent with despatches for the engineer officer in command at the lines, and during the fortnight of my absence, was enabled for the first time to examine those extraordinary defences which, for the space of thirty miles, extended over a country undulating in hill and valley, and presenting, by a succession of natural and artificial resources, the strongest and most impregnable barrier that has ever been presented against the advance of a conquering army. CHAPTER XXXI. MICKEY FREE’S ADVENTURE. When I returned to the camp, I found the greatest excitement prevailing on all sides. Each day brought in fresh rumors that Marmont was advancing in force; that sixty thousand Frenchmen were in full march upon Ciudad Rodrigo, to raise the blockade, and renew the invasion of Portugal. Intercepted letters corroborated these reports; and the Guerillas who joined us spoke of large convoys which they had seen upon the roads from Salamanca and Tamanes. Except the light division, which, under the command of Crawfurd, were posted upon the right of the Aguada, the whole of our army occupied the country from El Bodon to Gallegos; the Fourth Division being stationed at Fuente Guenaldo, where some intrenchments had been hastily thrown up. To this position Lord Wellington resolved upon retreating, as affording points of greater strength and more capability of defence than the other line of road, which led by Almeida upon the Coa. Of the enemy’s intentions we were not long to remain in doubt; for on the morning of the 24th, a strong body were seen descending from the pass above Ciudad Rodrigo, and cautiously reconnoitring the banks of the Aguada. Far in the distance a countless train of wagons, bullock-cars, and loaded mules were seen winding their slow length along, accompanied by several squadrons of dragoons. Their progress was slow, but as evening fell they entered the gates of the fortress; and the cheering of the garrison mixing with the strains of martial music, faint from distance, reached us where we lay upon the far-off heights of El Bodon. So long as the light lasted, we could perceive fresh troops arriving; and even when the darkness came on, we could detect the position of the reinforcing columns by the bright watch-fires which gleamed along the plain.