A small force under General Osterhaus was ordered to make a feint upon the enemy's rifle-pits at the point (or "nose," as Rosecrans calls it) of the mountain, while with Geary, and Ireland, and Crufts, and Whitaker, General Hooker moved up the valley west of the mountain until a mile in rear of the enemy's position; the troops then ascended the side of the range until the head of the column reached the palisades which crown the mountain, and formed in line of battle at right angles with them; they then marched forward as Osterhaus made a sharp attack as a feint, and, by taking the rebel works in flank and rear, secured about thirteen hundred prisoners. The enemy fled around the "nose" of the mountain, closely pursued, to a position on the opposite side, where Hooker again attacked. After one or two desperate efforts the rebel works were carried, but it was at such a late hour (midnight) that it was impossible to dislodge them from the Summertown road, a route by which they evacuated during the night. Hooker made a great reputation by his unique plan, and the vigor with which he executed it. The battle on the other parts of the line were suspended for that day, and Hooker on the mountain became the "observed of all observers." The troops in the valley watched him and his Titans with equal admiration and astonishment; astonishment at the success attained, and admiration of the daring displayed. When our troops turned the point of the mountain, taking the rebels in rear, capturing many and pursuing the rest rapidly, the troops in the Valley of Chattanooga cheered them repeatedly. As the lines of Hooker would advance after nightfall, those in Chattanooga and the valley could see the fires built by the reserves springing up and locating the advancing columns. As each line became developed by these fires, those on the mountain could plainly hear the loud cheers of their comrades below. One of the expressions used by a private who was watching the fires from Orchard Knob grew at once into the dignity of a camp proverb. On seeing the line of camp-fires advanced beyond the last line of rifle-pits of the enemy, a soldier in General Wood's command sprang up from his reclining position on Orchard Knob and exclaimed, "Look at old Hooker: don't he fight for 'keeps?'" "Fighting for keeps" is army slang, and signifies fighting in deadly earnest.