Here the Confederates confidently expected to overwhelm and capture McClellan's army, compelling its surrender. And there is small doubt that such must have been the outcome of the action had Lee's lieutenants accomplished that which he had set them to do. But Magruder and Huger failed Lee at the crisis. It was his plan that they should assail the Federals in flank with all possible vigor, while Jackson, Longstreet and A. P. Hill should press them upon the rear of their retreat which now became their front for purposes of battle. The destruction of McClellan's army seemed a certainty. But neither Magruder nor Huger arrived in time to make Lee's plan of assault successful. There was a bloody battle, but by reason of the delay of these two lieutenants it was an abortive one, failing utterly to accomplish that final and decisive overthrow and capture of McClellan's army upon which Lee had reckoned as the crowning achievement of this Seven Days' campaign.
The failure of these two generals to fulfil their obligations—a failure which resulted in the baffling of Lee's supreme purpose at the very moment when their presence must have given him quite all that he desired of victory—might well have been made the subject of an inquest by court martial or by a court of inquiry. But as Lee in the exceeding gentleness of his nature omitted to order any such inquest, the matter presents no authoritative basis of fact on which the historian may rest an award of blame. This much, however, seems to be certain—that if Huger and Magruder had done what Lee had ordered them to do, and what they might easily have done, McClellan's army must have been destroyed or captured on that thirtieth day of June, 1862.
As it was, McClellan fought all day and at night resumed his retreat, still doggedly intent upon that one difficult problem of "saving this army," concerning which he had written so doubtfully and so despairingly and so bitterly in his heart-wrung protest to Secretary Stanton.
After a fearfully bloody struggle the Federal army was able during the night to retire toward Malvern Hill, a position which the Confederates could not assail without exposing themselves to the destructive cross fire of the Federal fleet in the James river.
McClellan had now been completely dislodged from his position on the east and north of Richmond. He had been defeated in battle day after day, and driven out of his fortifications into a helpless retreat to the cover of his gunboats in the James river. His base of supplies at White House had been utterly broken up. He had lost in this series of battles no less than 15,249 men. The Confederates, being the assailants, had suffered even greater losses.
The Confederates at this point made one disastrous mistake. They had believed that McClellan would retreat by the route by which he had come, and in that belief they had remained where they were for twenty-four hours. During that precious time McClellan had moved his enormous wagon train and his great herd of 2,500 cattle towards his new base.
At White House General Casey loaded all the supplies he could upon transports and sent them to the new base. But he was obliged to burn millions of pounds of food and destroy hundreds of tons of ammunition which he could not remove. Trains of freight cars were loaded with food and ammunition and deliberately switched off the railroad tracks and into the river to prevent them from falling into the possession of the Confederates.
In brief McClellan's defeat was disastrous in the extreme; but by reason of the failure of Lee's lieutenants to do their proper part at the critical time the Federal commander was spared the humiliation of a surrender. He escaped instead to Malvern Hill after a succession of bloody defeats and after sacrificing the greater part of his reserve stores of food and ammunition at what he had established as a secure base of supplies.
It is not easy to imagine a completer or more disastrous defeat than this of the Seven Days, or an enforced retreat more humiliating. Yet at the last moment McClellan was enabled, by the mistake or the misconduct of Lee's lieutenants, to escape to Malvern Hill, under cover of his gunboats, and there Lee mistakenly assailed him, thus giving him, at the end of a series of conspicuous defeats, the appearance at least of a compensating victory.
Malvern Hill is rather a high plateau than a hill in the proper sense of the term. It lies about sixty feet above the surrounding country. It is a mile wide and a mile and a half long. At its base is a network of streams and impassable swamp lands, constituting a natural fortification practically impassable to any army in the field except at one point where a narrow road leads up the hill. The plateau lies so close to the James river that gunboats anchored in that stream can command its one approach with deadly certainty.