At half-past two on the morning of the 8th the division was astir. 'Twas a bright starlight night whose silence was unbroken as the troops moved thoughtfully toward the battlefield. In front, on the right, about a mile from the encampment, the hewn-stone walls of the Molino del Rey--a range of buildings five hundred yards long, and well adapted for defence--were distinctly visible, with drowsy lights twinkling through the windows. A little farther off, on the left, stood the black pile of the Casa Mata, the arsenal, crenelled for musketry, and surrounded by a quadrangular field work. Beyond the Casa Mata lay a ravine, and from this a ditch and hedge ran, passing in front of both works, to the Tacubaya road. Far on the right the grim old castle of Chapultepec loomed up darkly against the sky. Sleep wrapped the whole Mexican line, and but few words were spoken in the American ranks as the troops took up their respective positions: Garland, with Dunn's battery and Huger's 24-pounders, on the right, against the Molino; Wright, at the head of the stormers, and followed by the light division under Captain Kirby Smith, in the centre; M'Intosh, with Duncan's battery, on the left, near the ravine looking toward the Casa Mata; and Cadwallader, with his brigade, in reserve.
Night still overhung the east when the Mexicans were roused from their slumbers by the roar of Huger's 24-pounders, and the crashing of the balls through the roof and walls of the Molino. A shout arose within their lines, spreading from the ravine to the castle; lights flashed in every direction, bugles sounded, the clank of arms rang from right to left, and every man girded himself for the fray. With the first ray of daylight Major Wright advanced with the forlorn hope down the slope. A few seconds elapsed; then a sheet of flame burst from the batteries, and round shot, canister, and grape hurtled through the air. "Charge!" shouted the leader, and down they went, with double-quick step, over the ditch and hedge, and into the line, sweeping everything before them. The Mexicans fell from their guns, but soon, seeing the smallness of the force opposed to them and reassured by the galling fire poured from the _azoteas_ and Molino on the stormers, they rallied, charged furiously, and drove our men back into the plain. Here eleven out of the fourteen officers of Wright's party, and the bulk of his men, fell killed or wounded. All of the latter who could not fly were bayoneted where they lay by the Mexicans.