The gunboats in the river made the battle scene more awe-inspiring with their thunderous cannonading. Their heavy shells shrieked through the forest, and great limbs were torn from the trees as they hurtled by in their outburst of fury. Night was falling. The combatants were no longer distinguishable except by the sheets of flame. It was nine o'clock before the guns ceased their fire, and only an occasional shot rang out over the bloody field of Malvern Hill. The courageous though defeated Confederate, looking up the next day through the drenching rain to where had stood the embrasured wall with its grim batteries and lines of blue, that spoke death to so many of his companions-in-arms, saw only deserted ramparts. The Union army had retreated in the darkness of the night. But this time no foe harassed its march. Unmolested, it sought its new camp at Harrison's Landing, where it remained until August 3d, when, as President Lincoln had been convinced of the impracticability of operating from the James River as a base, orders were issued by General Halleck for the withdrawal of the Army of the Potomac from the Peninsula. The net military result of the Seven Days was a disappointment to the South. Although thankful that the siege of Richmond had been raised, the Southern public believed that McClellan should not have been allowed to reach the James River with his army intact. "That army," Eggleston states, "splendidly organized, superbly equipped, and strengthened rather than weakened in morale, lay securely at rest on the James River, within easy striking distance of Richmond. There was no knowing at what moment McClellan might hurl it again upon Richmond or upon that commanding key to Richmond--the Petersburg position. In the hands of a capable commander McClellan's army would at this time have been a more serious menace than ever to the Confederate capital, for it now had an absolutely secure and unassailable base of operations, while its fighting quality had been improved rather than impaired by its seven days of battling." General Lee's own official comment on the military problem involved and the difficulties encountered was: "Under ordinary circumstances the Federal army should have been destroyed. Its escape was due to the causes already stated. Prominent among these is the want of correct and timely information. This fact, attributable chiefly to the character of the country, enabled General McClellan skilfully to conceal his retreat and to add much to the obstructions with which nature had beset the way of our pursuing columns; but regret that more was not accomplished gives way to gratitude to the Sovereign Ruler of the Universe for the results achieved."