Anticipating his arrival, the Confederate general had hurled Hill's corps against the Union right wing under Porter. Throughout the day of the 26th and until nine o'clock at night the battle raged with unabated fury. The losses on both sides were frightful and neither had gained a victory. But at nine o'clock the Federal Commander ordered his right wing to retreat five miles to Gaines Mill and cover his withdrawal of heavy guns and supplies. They were ordered at all hazards to hold Jackson's fresh troops at bay until this undertaking was well under way. It was a job that called for all his skill in case of defeat. It involved the retreat of an army of one hundred thousand men with their artillery and enormous trains of supplies across the mud-scarred marshy Peninsula. Five thousand wagons loaded to their utmost capacity, their wheels sinking in the springy earth, had to be guarded and transported. His siege guns, so heavy it was impossible to hitch enough horses to move them over roads in which they sank to the hubs, had to be saved. Three thousand cattle were there, to be guarded and driven, and it was more than seventeen miles to the shelter of his gunboats on the James.

During the night his wagon trains and heavy guns were moved across the Chickahominy toward his new base on the James.

The morning of the 27th dawned cool and serene. Under the cover of the night the silent grey army had followed the retiring one in blue. The Southerners lay in the dense wood above Gaines Mill dozing and waiting orders.

A balloon slowly rose from the Federal lines and hung in the scarlet clouds that circled the sun. The signal was given to the artillery that the enemy lay in the deep woods within range and a storm of shot and shell suddenly burst over the heads of the men in grey and the second day's carnage had begun.

For once Jackson, the swift and mysterious, was late in reaching the scene. It was two o'clock when Hill again unsupported hurled his men on the Federal lines in a fierce determined charge. Twenty-six guns of the matchless artillery of McClellan's army threw a stream of shot and shell into his face. Never were guns handled with deadlier power. And back of them the infantry, thrilled at the magnificent spectacle, poured their hail of hissing lead into the approaching staggering lines.

The waves of grey broke and recoiled. A blue pall of impenetrable smoke rolled through the trees and clung to the earth. Under the protection of their great guns the dense lines of blue pushed out into the smoke fog and charged their foe. For two hours the combat raged at close quarters. A division of fresh troops rushed to the Northern line, and Lee observing the movement from his horse on an eminence, ordered a general attack on the entire Union front.

It was a life and death grapple for the mastery. Jackson's corps was now in action. A desperate charge of Hood's division at last broke the Union lines and the grey men swarmed over the Federal breastworks. The lines broke and began to roll back toward the bridges of the Chickahominy. The retreat threatened to become a rout. The twilight was deepening over the field when a shout rose from the tangled masses of blue stragglers by the bridge. Dashing through them came the swift fresh brigades of French and Meager. General Meager, rising from his stirrups in his shirt sleeves, swung his bare sword above his head, hurled his troops against the advancing Confederate line and held it until darkness saved Porter's division from ruin.

McClellan's one hope now was to pull his army out of the deadly swamps in which he had been caught and save it from destruction. He must reach the banks of the James and the shelter of his gunboats before he could stop to breathe. At every step the charging grey lines crashed on his rear guard. Retreating day and night, turning and fighting as a hunted stag, he was struggling only to escape.

That there was no panic, no rout, was a splendid tribute to his organizing and commanding powers. His army was an army at last in fact as well as in name—a compact and terrible fighting machine. The oncoming Confederate hosts learned this to their sorrow again and again in the five terrible days which followed.

On July 1st, McClellan reached the shelter of his gunboats and intrenched himself on the heights of Malvern Hill. On its summit he placed tier after tier of batteries swung in crescent line, commanding every approach. Surmounting those on the highest point he planted seven of his great siege guns. His army surrounded this hill, its left flank resting on the James and covered by his gunboats.