The moon slipped between the clouds. The night air was still. An owl hooted. The faint sound of other animals and birds echoed. The chieftain edged forward. He paused for a few heartbeats, rose to a crouch and charged silently into the night, his war band surging behind him. They streamed across the moorland, dark, sinister figures armed with club, axe, stabbing dirk and shield. The wall reared above them, silent and forbidding. The double gates of the mile fort were closed fast. The Picti glimpsed the glow of an oil lamp through a window, and the flicker of orange flame from the beacon on top of the tower licked the night sky, yet no horn or trumpet blew the alarm. Makeshift ladders, poles with pegs along each side, were placed hurriedly against the stone. The Picti clambered up, jumping through the crenellations on to the desolate fighting platform at the top. The beacon fire glowed hot in its iron brazier but there were no guards, no Romani. The Picti pulled back the heavy wooden trapdoor and poured down the steps into the narrow rooms below: empty, nothing but sconce torches glowing.

The chieftain raced through a recess into the room beyond, his comrades clustering behind. A solitary Roman struggled to his feet from a cot bed. He was unarmed, heavy-eyed with sleep. He was reaching for the tamarisk twig broom, the only weapon at hand, but war club and axe fell, smashing his skull, splashing the walls with his brains and blood. The Roman, dressed only in his tunic, slumped to the ground, drenched in gofe, eyes dulling, as the Picti swept through the rest of the fort chambers. A shout of victory brought the chieftain to the steps leading down into a cellar,- his followers had found the pay chest, a small coffer full of silver. He gestured at them to reseal it; it was a great find, but the chieftain ground his teeth in anger for the Golden Maid was not here! He stood in the square courtyard, heart thumping, blood seething. He had a choice. He could retreat through the narrow alleyway, force the wooden gates at the far end and escape back on to the moorland, or he could breach the south-facing gates leading out beyond the wall and sweep down to plunder and pillage the isolated settlements and villas beyond.

The chieftain glared up at the sky. He was a fearsome, war-like figure, his thick hair and beard caked with the blood of his enemies, his swarthy skin festooned with sacred war paint, magical roundels etched all over his body. He ran a finger around the rim of his war belt, then stared down at his feet and rejoiced at how they were smeared with the blood of his enemy. He gripped his long shield and, with the other hand, raised his axe club, howling like a wolf. His war band responded. They had found jars of posca, the coarse legionary wine, and were eagerly ladling it into their mouths, making themselves ripe for more mischief. True, they had not discovered the Golden Maid, but they had taken a mile fort, a fortress along the hated wall. No sooner had he given his war cry than the chieftain began to regret his impetuousness. His flesh tingled as the sweat cooled, the fury ebbed and his mind grew clearer, sharper, more cunning. He pushed back his lime-stained hair and stared at the double wooden gates facing south. Should he open them or retreat back to his settlement, to the women with their weaving and the minstrels with their silver-noted harps? There'd be feasting and dancing; perhaps he'd done enough to boast about before the camp fires? All around him milled his men. One, already drunk from the posca, had fixed the severed head of the Roman on the end of a pole, the jagged neck still wet with blood, the eyes half closed, the mouth red and gaping. Another had castrated the man, displaying the severed testicles on the point of a spear.

The chieftain remained still. He was confused. He'd expected to find the Golden Maid but there was nothing except that solitary Roman. Was he an officer? A sick soldier left by his comrades? Had the Romani left because of their own dissensions? But why were the torches, oil lamps and beacon glowing? He hesitated too long; his warriors were already moving, swinging open the gates facing south. Like a turbulent river eager to break free from an obstacle, the Picti streamed across the heathland south of the wall. The chieftain, beckoning his son to join him, had no choice but to follow. The cold night air swirled around them, chilling their sweat. They could already glimpse pinpricks of light beckoning them on to villas and farmsteads where they might find women, plunder, horses and other riches.

The war party fanned out across gorse, the long grass bending under the strong night breeze. The moon had broken free of the clouds; the sky was star-lit and clear. They hurried forward like a wolf pack eager for the kill. Their chieftain was moving to the front when he heard the clink of chain, the creak of harness, the neigh of a horse. He froze stock-still like a hunting dog, eyes peering through the darkness. Shapes were approaching, horsemen spreading out into an arc; a number carried flaring torches. The chieftain narrowed his eyes, wiping away the lime-mingled sweat. He tried to count. Eight, maybe nine horsemen, perhaps even more, were moving slowly towards his war party of about thirty men.

The Picti was a veteran. He might outnumber the enemy, but these were Catephracti, mailed, mounted troopers, highly disciplined and dangerous on such terrain. He screamed a warning, pointing back to the gates, and broke into a run, gesturing at his men to follow. Those quickwitted amongst his warriors had already sensed or seen the danger. Others were too drunk or confused. They only realised the ambush they had walked into when the formidable line of horsemen moved into a trot, then a full charge, the air riven by a hideous rumble of hoofs, the sounds of the night drowned by the clatter of weapons and the heart-chilling war cry of the Roman cavalry. The horsemen swept in, cloaks billowing, swords rising and falling. The tribesmen scattered. Out in the open they were doomed. If they fled towards the wall the riders would pin them against it and cut them down. They had to break free of the wall, retreat into their own territory.

The chieftain raced back to the fort, in through the yawning gate, down the hard-paved gully to the north-facing gate, but when he and his companions reached it, they found it fastened shut, the bar nailed down. Outside echoed the screams of their dying comrades. The riders had fired the heathland by emptying small sacks of oil and throwing in torches to start a blaze. The flames roared up, illuminating the night. The Picti had little defence against such armoured men on their heavy mounts who now loosed powerful shafts from their reinforced Scythian bows. The chieftain turned away from the north gate, desperately searching for his son. He looked towards the ladder leading to the roof, but the Crested Ones were too swift. Some were already dismounting and crowding in through the other gate, bows at the ready. A few of his men tried to reach the ladder, only to be brought down by the long feathered shafts. The chieftain raised his shield and gripped his war club tighter. He recognised that his life-web had been spun to its full. The gods were ready to cut the thread. The Catephracti, hideous figures, faces almost hidden behind their mail coifs, were already pressing forward, bows pulled back. The chieftain smiled. He'd take the swan-path of glory. At least he'd possessed, if only for a short while, the Golden Maid…

Justitia est constans et perpetua voluntas ius suum cuique tribunes.

Justice is the constant and perpetual wish to give everyone their due.

Justinian, Institutes