Affairs at this time were going on most satisfactorily, the troops, after a 120-mile march, accomplished in nine days, including a day's halt and two days' fighting, had almost cleared Natal of the invaders, and were in possession of the country from Van Reenan's Pass to the Buffalo River. A message of congratulation on their efforts was received from the Queen, and the General expressed his satisfaction at the successful work accomplished. One unfortunate affair damped the spirits of the advancing army. [Illustration: GENERAL BULLER'S ADVANCE: PURSUING THE BOERS AFTER THE FIGHT ON HELPMAKAAR HEIGHTS Drawing by J. Nash, R.I., from a Sketch by G. Foucar] On the 17th, Colonel Bethune was detached, with about 500 men, from Dundee. His column consisted of five squadrons of mounted infantry, two Hotchkiss and two Maxim guns. His instructions were to show his force in N'qutu, in the centre of British Zululand (to which a magistrate and civil establishment were about to return), and afterwards to rejoin Sir Redvers Buller at Newcastle. The orders were executed, and Colonel Bethune moved towards Newcastle on the 20th May, _via_ Vryheid, due north of the road which leads to Utrecht. About six miles north-west of Vryheid, the Boers were ambushed in the thick shrub that abounds in the neighbourhood, with the result that E squadron of Mounted Infantry, which had pushed ahead to reach Vryheid before dark set in, suffered severe loss. Few escaped to tell the tale, the outline of which was as follows: The Boers no sooner saw the troopers approaching than they jumped from their hiding-place and surrounded them. Captain Goff (6th Dragoon Guards), who was commanding the squadron, dismounted his men and made a valiant stand, but the Boers poured a volley on them, incapacitating most of the horses and many of the men. The commanding officer was shot dead. Still the party continued to reply to the fire of the enemy till, ammunition running short, they knew resistance would soon be unavailing. Meanwhile, the scene of confusion was horrible. The Boers had set the crisp, dry grass into a blaze, and behind the smoke of it were able to fire with impunity at the helpless British force. The rest of the column had hastened towards the scene of the disaster, but what with the crackling glare of the flamboyant grass, the suffocating clouds of smoke, and the deceptive darkness of the gloaming, Colonel Bethune dared not open fire at close quarters lest he should injure his own already wounded force. Gallantly the men of D squadron dashed into the mêlée, and rescued from thence such troopers as survived. Lieutenant Capell, who gave his horse to an injured trooper, was taken prisoner, and Lord De la Warr, while going to the relief of another, was slightly injured in the leg.