The right wing of this column, consisting of the 5th regiment, under the command of Lieutenant-colonel Davie, which advanced by the Calles Charcas and Paraguay, met with but slight opposition, and captured some spiked guns in a cross street. After occupying some houses on the river front Colonel Davie detached an officer with a strong party to seize the church and convent of Las Monjas Catalinas, but Major King of this regiment in attempting to capture another large house was driven back by overwhelming numbers of the enemy. The right column of attack, under the command of General Crauford, marched upon the southern quarter of the city. The left wing of this column, led by Colonel Pack, about 600 strong, advanced by the Calle Moreno, and penetrated to the last block without much loss, although the Calle Moreno was but one block distant from the defences of the Plaza Mayor. The approaches to these defences had been all night illuminated by lamps hanging in the doorways and windows of the houses; these lamps were still burning dimly in the murky air of the early morning when Colonel Pack halted among the scattered houses which overlooked the beach to the south of the fort. These houses were under the guns of the fort and offered no position that he could safely occupy. He looked about him; to his left lay a narrow street, closed by a black mound of earth; once over that mound and he was in the Plaza de los Perdices, and by one desperate effort might seize the fort and decide the fortunes of the day. His first step was to detach Colonel Cadogan with his rearguard to attack the church of San Francisco and so secure his rear. This church stood close to the trench which crossed the Calle Defensa at its junction with the Calle Potosi; the azoteas all round were strongly garrisoned. Advancing rapidly up the narrow street, Colonel Cadogan brought up a field-piece to blow open the side door of the church, but from the surrounding azoteas and from the earthwork so tremendous a fire was poured upon him that "on a sudden the whole of the leading company and every man and horse at the gun were killed or disabled." He was forced to a precipitate retreat, and bursting into a house in the Calle Moreno took refuge there with 140 men.