De Lisle hardly halted at Calvinia, but pushed onwards to Williston, covering seventy-two miles of broken country in forty-eight hours, one of the most amazing performances of the war.

Quick as he was, the Boers were quicker still, and during his northward march he does not appear to have actually come into contact with them.

Their line of retreat lay through Carnarvon, and upon February 22nd they crossed the railway line to the north of De Aar, and joined upon February 26th the new invading force under De Wet, who had now crossed the Orange River.

De Lisle, who had passed over five hundred miles of barren country since he advanced from Piquetburg, made for the railway at Victoria West, and was despatched from that place on February 22nd to the scene of action in the north.

From all parts Boer and Briton were concentrating in their effort to aid or to repel the inroad of the famous guerilla.
Before describing this attempt it would be well to trace the progress of the eastern invasion (Kritzinger's), a movement which may be treated rapidly, since it led to no particular military result at that time, though it lasted long after Hertzog's force had been finally dissipated.
Several small columns, those of Williams, Byng, Grenfell, and Lowe, all under the direction of Haig, were organised to drive back these commandos; but so nimble were the invaders, so vast the distances and so broken the country, that it was seldom that the forces came into contact.