Wallace, seeing that the other divisions were withdrawing and that his command was being surrounded, gave the order for his troops to fall back. To execute the order, his division had to pass through a ravine which was already under the crossfire of the encircling Confederates. Wallace was mortally wounded in the attempt, but two of his regiments succeeded in passing through the valley, between the Confederate lines, which they appropriately named “Hell’s Hollow.” Prentiss continued the resistance until 5:30 p. m., when he was compelled to surrender with over 2,200 troops—all that remained of the two divisions.
During the afternoon, Col. Joseph D. Webster, Grant’s Chief of Artillery, placed a battery of siege guns around the crest of a hill about a quarter of a mile in from the Landing. The smaller field artillery pieces were put in position on either side of them as they were moved back from the front. The two wooden gunboats, _Tyler_ and _Lexington_, anchored opposite the mouth of Dill Branch, further strengthened the line. As the remnants of the shattered Union Army drifted back toward the Landing, they were rallied along this line of cannon.
[Illustration: _Gen. Ulysses S. Grant._ Courtesy National Archives.]
After the capture of Prentiss, an attempt was made to reorganize the Confederates for an attack upon the Union position near the Landing. Before a coordinated attack could be made, Beauregard, who had received word that Buell would not arrive in time to save Grant’s army, sent out the order from his headquarters at Shiloh Church to suspend the attack. Unknown to Beauregard, the advance of Buell’s army had already arrived opposite Pittsburg Landing and was being rapidly ferried across the river.
During Sunday night and Monday morning, Buell moved approximately 17,000 troops into line on the Union left. Lew Wallace put almost 6,000 fresh troops—Fort Donelson veterans—in position on the right. The Confederates, receiving no reinforcements, spent a sleepless night in the captured Union camps annoyed by shells from the gunboats, which were thrown among them at 15-minute intervals throughout the night.
[Illustration: _Gen. Don Carlos Buell._ Courtesy National Archives.]