Colonel Spragge's men had held their own for the first three days of their investment, during which they had been simply exposed to a long-range rifle fire which inflicted no very serious loss upon them. Their principal defence consisted of a stone kraal about twenty yards square, which sheltered them from rifle bullets, but must obviously be a perfect death-trap in the not improbable event of the Boers sending for artillery. The spirit of the troopers was admirable. Several dashing sorties were carried out under the leadership of Captain Humby and Lord Longford. The latter was a particularly dashing business, ending in a bayonet charge which cleared a neighbouring ridge. Early in the siege the gallant Keith met his end. On the fourth day the Boers brought up five guns. One would have thought that during so long a time as three days it would have been possible for the officer in command to make such preparations against this obvious possibility as were so successfully taken at a later stage of the war by the handful who garrisoned Ladybrand. Surely in this period, even without engineers, it would not have been hard to construct such trenches as the Boers have again and again opposed to our own artillery. But the preparations which were made proved to be quite inadequate. One of the two smaller kopjes was carried, and the garrison fled to the other. This also was compelled to surrender, and finally the main kopje also hoisted the white flag. No blame can rest upon the men, for their presence there at all is a sufficient proof of their public spirit and their gallantry. But the lessons of the war seem to have been imperfectly learned, especially that very certain lesson that shell fire in a close formation is insupportable, while in an open formation with a little cover it can never compel surrender. The casualty lists (80 killed and wounded out of a force of 470) show that the Yeomanry took considerable punishment before surrendering, but do not permit us to call the defence desperate or heroic. It is only fair to add that Colonel Spragge was acquitted of all blame by a court of inquiry, which agreed, however, that the surrender was premature, and attributed it to the unauthorised hoisting of a white flag upon one of the detached kopjes. With regard to the subsequent controversy as to whether General Colvile might have returned to the relief of the Yeomanry, it is impossible to see how that General could have acted in any other way than he did.
Some explanation is needed of Lord Methuen's appearance upon the central scene of warfare, his division having, when last described, been at Boshof, not far from Kimberley, where early in April he fought the successful action which led to the death of Villebois. Thence he proceeded along the Vaal and then south to Kroonstad, arriving there on May 28th. He had with him the 9th Brigade (Douglas's), which contained the troops which had started with him for the relief of Kimberley six months before. These were the Northumberland Fusiliers, Loyal North Lancashires, Northamptons, and Yorkshire Light Infantry. With him also were the Munsters, Lord Chesham's Yeomanry (five companies), with the 4th and 37th batteries, two howitzers and two pom-poms. His total force was about 6000 men. On arriving at Kroonstad he was given the task of relieving Heilbron, where Colvile, with the Highland Brigade, some Colonial horse, Lovat's Scouts, two naval guns, and the 5th battery, were short of food and ammunition. The more urgent message from the Yeomen at Lindley, however, took him on a fruitless journey to that town on June 1st. So vigorous was the pursuit of the Yeomanry that the leading squadrons, consisting of South Notts Hussars and Sherwood Rangers, actually cut into the Boer convoy and might have rescued the prisoners had they been supported. As it was they were recalled, and had to fight their way back to Lindley with some loss, including Colonel Rolleston, the commander, who was badly wounded. A garrison was left under Paget, and the rest of the force pursued its original mission to Heilbron, arriving there on June 7th, when the Highlanders had been reduced to quarter rations. 'The Salvation Army' was the nickname by which they expressed their gratitude to the relieving force.
A previous convoy sent to the same destination had less good fortune. On June 1st fifty-five wagons started from the railway line to reach Heilbron. The escort consisted of one hundred and sixty details belonging to Highland regiments without any guns, Captain Corballis in command. But the gentleman with the tinted glasses was waiting on the way. 'I have twelve hundred men and five guns. Surrender at once!' Such was the message which reached the escort, and in their defenceless condition there was nothing for it but to comply. Thus one disaster leads to another, for, had the Yeomanry held out at Lindley, De Wet would not on June 4th have laid hands upon our wagons; and had he not recruited his supplies from our wagons it is doubtful if he could have made his attack upon Roodeval. This was the next point upon which he turned his attention.