Cormac shook his head as Bran had done, and with a last salute, which Kull returned with barbaric stateliness, he turned and trotted away. At the top of the western ridge he paused. Away to the south a light cloud of dust rose and the head of the marching column was in sight. Already he believed he could feel the earth vibrate slightly to the measured tread of a thousand mailed feet beating in perfect unison. He dismounted, and one of his chieftains, Domnail, took his steed and led it down the slope away from the valley, where trees grew thickly. Only an occasional vague movement among them gave evidence of the five hundred men who stood there, each at his horse's head with a ready hand to check a chance nicker.
At the northern end of the valley stood Kull and his three hundred Vikings, in open view, flanked on each side by fifty Pictish bowmen. Hidden on the western side of the western ridge were the Gaels. Along the top of the slopes, concealed in the tall heather, lay a hundred Picts with their shafts on string. The rest of the Picts were hidden on the eastern slopes beyond which lay the Britons with their chariots in full readiness. Neither they nor the Gaels to the west could see what went on in the vale, but signals had been arranged.
Now the long column was entering the wide mouth of the valley and their scouts, light-armed men on swift horses, were spreading out between the slopes. They galloped almost within bowshot of the silent host that blocked the pass, then halted. Some whirled and raced back to the main force, while the others deployed and cantered up the slopes, seeking to see what lay beyond. This was the crucial moment. If they got any hint of the ambush, all was lost. Cormac, shrinking down into the heather, marveled at the ability of the Picts to efface themselves from view so completely. He saw a horseman pass within three feet of where he knew a bowman lay, yet the Roman saw nothing.
The scouts topped the ridges, gazed about; then most of them turned and trotted back down the slopes. Cormac wondered at their desultory manner of scouting. He had never fought Romans before, knew nothing of their arrogant self-confidence, of their incredible shrewdness in some ways, their incredible stupidity in others. These men were overconfident; a feeling radiating from their officers. It had been years since a force of Caledonians had stood before the legions. And most of these men were but newly come to Britain; part of a legion which had been quartered in Egypt. They despised their foes and suspected nothing.
But stay—three riders on the opposite ridge had turned and vanished on the other side. And now one, sitting his steed at the crest of the western ridge, not a hundred yards from where Cormac lay, looked long and narrowly down into the mass of trees at the foot of the slope. Cormac saw suspicion grow on his brown, hawk-like face. He half turned as though to call to his comrades, then instead reined his steed down the slope, leaning forward in his saddle. Cormac's heart pounded. Each moment he expected to see the man wheel and gallop back to raise the alarm. He resisted a mad impulse to leap up and charge the Roman on foot. Surely the man could feel the tenseness in the air—the hundreds of fierce eyes upon him. Now he was halfway down the slope, out of sight of the men in the valley. And now the twang of an unseen bow broke the painful stillness. With a strangled gasp the Roman flung his hands high, and as the steed reared, he pitched headlong, transfixed by a long black arrow that had flashed from the heather. A stocky dwarf sprang out of nowhere, seemingly, and seized the bridle, quieting the snorting horse, and leading it down the slope. At the fall of the Roman, short crooked men rose like a sudden flight of birds from the grass and Cormac saw the flash of a knife. Then with unreal suddenness all had subsided. Slayers and slain were unseen and only the still-waving heather marked the grim deed.
The Gael looked back into the valley. The three who had ridden over the eastern ridge had not come back and Cormac knew they never would. Evidently the other scouts had borne word that only a small band of warriors was ready to dispute the passage of the legionaries. Now the head of the column was almost below him and he thrilled at the sight of these men who were doomed, swinging along with their superb arrogance. And the sight of their splendid armor, their hawk-like faces and perfect discipline awed him as much as it is possible for a Gael to be awed.