On Spion Kop the Fog of War hung more densely than ever. Coke, who was lame and unable to move freely about the position, believed that Hill, who had come up with a reinforcement soon after noon, and who was next in seniority to Crofton, was in command on the summit. He thought that Crofton had been wounded, and neither saw Thorneycroft nor knew until the following day that Warren had given him the local rank of Brigadier-General at Buller's suggestion. Thorneycroft was a junior major in the Army, having the local rank of Lieutenant-Colonel: and with two colonels senior to him present as well as a major-general, he was doubtful as to his status. No instructions reached him from Coke; he was unaware that the Twin Peaks had been taken by one of Lyttelton's battalions, and he was without means of signalling to Warren. He had no information of the measures which were being taken, such as the dispatch of guns, to make the retention of Spion Kop possible.
The men on the summit were utterly exhausted by fatigue, hunger, thirst, want of sleep, and exposure to the summer sun beating down upon the rocky surface, and their ammunition was running short. At 5.50 p.m. Coke reported "that the situation is extremely critical" and that the men "would not stand another day's shelling," but it was two hours before the message reached Warren. He ordered Coke to come down to consult him. Coke endeavoured to obtain permission by flash signal to stay where he was, but no oil could be obtained for the lamp, so regarding the order as imperative, he quitted Spion Kop at 9.30 p.m., leaving, as he thought, Hill in command. For four hours he strayed in the Fog of War before he found Warren's Head Quarters, which had come under shell fire, and which, unknown to him, had been moved from their original position.
Between 8 and 9, Warren received a letter written at 6.30 p.m. by Thorneycroft, who reported that the enemy's shell fire rendered the permanent occupation of Spion Kop impossible, and asked for instructions.
Coke's departure left the position without a clearly recognized commander, although he had done little more than attend to and distribute the supports and reinforcements on the S.W. spur. After the dispatch of Thorneycroft's letter at 6.30 p.m., the situation grew more hopeless every minute. The enemy's artillery was out of reach, the nature of the ground and the want of tools made it impossible to cut properly designed trenches, rations and water were exhausted, and nothing was known of assistance to be brought up during the night except that a mountain battery, which would be of little use against the enemy's guns, was at the foot of the slope.
For these reasons Thorneycroft justified in his official report his decision to retire from Spion Kop. With the acquiescence of all the senior officers, except Hill, who could not be found, he ordered a withdrawal at 10 p.m. The alternative seemed to be a Majuba surrender next morning. At 10.30 p.m. as the troops were beginning to move off the hill, he received a letter from Warren, asking for his views on the situation, and as to the measures to be adopted. It was now unnecessary to give these, and he sent a brief reply that he was obliged to abandon Spion Kop as the position was untenable.
The retirement was not made without protests from Hill and from Coke's staff officer who was still on the plateau. The former, eleven hours after Thorneycroft's appointment as Brigadier-General, believed, as he had every right to do, that he was in command, and halted the men; the latter sent round a memorandum to the commanding officers, asserting that there was no authority for the withdrawal. But the force of Thorneycroft's local rank prevailed, and the retreat was not stayed. Near the foot of the slope he found the mountain battery, and met a fatigue party on its way to prepare emplacements for two naval guns which were coming up, and received a message from Warren urging him to hold on to the position. It was too late. Ordering back the party and the battery, he went on to report himself to Warren, and arrived at Head Quarters almost simultaneously with Coke.
The Boers meanwhile were greatly discouraged by their expulsion from the Twin Peaks, and their failure to occupy the main position on Spion Kop. The guns which had tormented Thorneycroft for so many hours, and which were the chief cause of his retirement, were withdrawn, and Schalk Burger's commandos oozed away towards Ladysmith. But there was, however, a stalwart and not inconsiderable remnant of burghers who responded to Botha's expostulations, and stood fast as a forlorn hope determined to win back Spion Kop and the Twin Peaks. Their constancy was rewarded, and when at sunrise on January 25 they once more climbed the hill, they found to their astonishment and relief that it was still held—by more than 300 bodies of their fallen foes.
Such in brief is the tale of Spion Kop so far as it can be disentangled from the accumulation of messages, orders, reports, dispatches, and personal accounts, which obscure the subject. Many of these are inconsistent, not a few contradictory, and sufficient evidence might be found to support plausibly half a dozen conflicting theories of the cause of the disaster, and as many variants of the narrative.
At 2 a.m. Warren heard from Thorneycroft's lips—the latter's written message sent off at 10.30 p.m. on the previous evening not having reached him—of the evacuation of Spion Kop. At sunrise he was joined by Buller, who viewed the situation in a spirit of philosophic detachment. He had never cordially approved of the Spion Kop adventure, and was not surprised to hear that it had failed. Warren was inclined to persevere, but Buller decided to retire south of the Tugela and assumed the direct command of the Army, which on January 27 was once more drawn up on the right bank after an absence of ten days; with most of its superior officers discredited, with Ladysmith unrelieved, and the nation at home aghast at the disaster.
The lonely figure of Thorneycroft, the only man of action on the summit energizing and quickening the defence, stands out prominently in the confusion, gloom, and half lights of Spion Kop. Buller's impulsive intervention made him responsible for the position, and he tried to do his best. If the final act was an error of judgment, there is little doubt that but for Thorneycroft, the Boers would have rushed the plateau on the afternoon of January 24. He received no effective support from Clery and little from Warren, and was out of touch with Coke and the Colonels. His uncertainty as to his authority caused him to refrain from exercising it fully until the last moment. For the pain which the decision to withdraw must have given him, he deserves much sympathy. But although it was approved of by Buller, who probably felt bound to support his nominee, it was at least premature. He might reasonably have expected that an effort would be made during the night to relieve him, and might have postponed it for a few hours. It is unjust to judge a man in the light of eventualities which he could not reasonably be expected to foresee, but subsequent accounts from the Boer side show that the attack would not have been renewed the next morning if the enemy had found the Twin Peaks, for the evacuation of which Buller and not Thorneycroft was responsible, and Spion Kop still occupied.