Uther and Igraine by Warwick Deeping

The sun had rolled back between the pylons of the west. Night was in the sky, night in her winter austerity -- keen, clear, aglitter with stars as though her robe were spangled with cosmic frost. The mountains' rugged heads were dark to the heavens, and the sea lay a faintly glimmering plain open to the beck of the moon.

The Irish host had broken and fled at sunset before Uther's charge and the streaming spears of Eldol and King Nentres. The green meadows, the wild scrubland, had been chequered over with the black swarm of the flying soldiery; the whole valley had surged with swords and the sound of the slaughter. By the grey walls of the town it had beleaguered, the driven host had turned and rallied in despair to stave off to the last the implacable doom that poured down from the hills. It was the vain effort of a desperate cause. Broken and scattered like dust along a highway, there had been no hope left them but their ships. The battle had ended in the very foam of the breaking waves. Crag and cliff, rock-citadel and yellow sand, had had their meed of blood and the shrill sound of the sword. The great ships had saved but a remnant, and had put out to sea in the dusk, their white sails like huge ghosts treading the swell of the twilight waters. Yet with night there had come no ceasing of the carnage. Despair had turned to front victory; Irish gallowglass and heathen churl, forsaken by their ships and hemmed in by sea and sword, had fought on to the end, finding and knowing no mercy. Gilomannius the King and Pascentius were dead, and the blood of invasion poured out like water.