He swung into the upper cave and Atla thrust the blocking stone back in place. It fitted into the entrance of the well with uncanny precision; Bran was unable to discern any crack in the apparently solid floor of the cavern. Atla made a motion to extinguish the torch, but the king stayed her.
“Keep it so until we are out of the cave,” he grunted. “We might tread on an adder in the dark.”
Atla’s sweetly hateful laughter rose maddeningly in the flickering gloom.
VI
It was not long before sunset when Bran came again to the reed-grown marge of Dagon’s Mere. Casting cloak and sword-belt on the ground, he stripped himself of his short leathern breeches. Then gripping his naked dirk in his teeth, he went into the water with the smooth ease of a diving seal. Swimming strongly, he gained the center of the small lake, and turning, drove himself downward.
The mere was deeper than he had thought. It seemed he would never reach the bottom, and when he did, his groping hands failed to find what he sought. A roaring in his ears warned him and he swam to the surface.
Gulping deep of the refreshing air, he dived again, and again his quest was fruitless. A third time he sought the depth, and this time his groping hands met a familiar object in the silt of the bottom. Grasping it, he swam up to the surface.
The Stone was not particularly bulky, but it was heavy. He swam leisurely, and suddenly was aware of a curious stir in the waters about him which was not caused by his own exertions. Thrusting his face below the surface, he tried to pierce the blue depths with his eyes and thought to see a dim gigantic shadow hovering there.
He swam faster, not frightened, but wary. His feet struck the shallows and he waded up on the shelving shore. Looking back he saw the waters swirl and subside. He shook his head, swearing. He had discounted the ancient legend which made Dagon’s Mere the lair of a nameless water-monster, but now he had a feeling as if his escape had been narrow. The time-worn myths of the ancient land were taking form and coming to life before his eyes. What primeval shape lurked below the surface of that treacherous mere, Bran could not guess, but he felt that the fenmen had good reason for shunning the spot, after all.
Bran donned his garments, mounted the black stallion and rode across the fens in the desolate crimson of the sunset’s afterglow, with the Black Stone wrapped in his cloak. He rode, not to his hut, but to the west, in the direction of the Tower of Trajan and the Ring of Dagon. As he covered the miles that lay between, the red stars winked out. Midnight passed him in the moonless night and still Bran rode on. His heart was hot for his meeting with Titus Sulla. Atla had gloated over the anticipation of watching the Roman writhe under torture, but no such thought was in the Pict’s mind. The governor should have his chance with weapons – with Bran’s own sword he should face the Pictish king’s dirk, and live or die according to his prowess. And though Sulla was famed throughout the provinces as a swordsman, Bran felt no doubt as to the outcome.
Dagon’s Ring lay some distance from the Tower – a sullen circle of tall gaunt stones planted upright, with a rough-hewn stone altar in the center. The Romans looked on these menhirs with aversion; they thought the Druids had reared them; but the Celts supposed Bran’s people, the Picts, had planted them – and Bran well knew what hands reared those grim monoliths in lost ages, though for what reasons, he but dimly guessed.
The king did not ride straight to the Ring. He was consumed with curiosity as to how his grim allies intended carrying out their promise. That They could snatch Titus Sulla from the very midst of his men, he felt sure, and he believed he knew how They would do it. He felt the gnawings of a strange misgiving, as if he had tampered with powers of unknown breadth and depth, and had loosed forces which he could not control. Each time he remembered that reptilian murmur, those slanted eyes of the night before, a cold breath passed over him. They had been abhorrent enough when his people drove Them into the caverns under the hills, ages ago; what had long centuries of retrogression made of them? In their nighted, subterranean life, had They retained any of the attributes of humanity at all?
Some instinct prompted him to ride toward the Tower. He knew he was near; but for the thick darkness he could have plainly seen its stark outline tusking the horizon. Even now he should be able to make it out dimly. An obscure, shuddersome premonition shook him and he spurred the stallion into swift canter.
And suddenly Bran staggered in his saddle as from a physical impact, so stunning was the surprize of what met his gaze. The impregnable Tower of Trajan was no more! Bran’s astounded gaze rested on a gigantic pile of ruins – of shattered stone and crumbled granite, from which jutted the jagged and splintered ends of broken beams. At one corner of the tumbled heap one tower rose out of the waste of crumpled masonry, and it leaned drunkenly as if its foundations had been half cut away.
Bran dismounted and walked forward, dazed by bewilderment. The moat was filled in places by fallen stones and broken pieces of mortared wall. He crossed over and came among the ruins. Where, he knew, only a few hours before the flags had resounded to the martial tramp of iron-clad feet, and the walls had echoed to the clang of shields and the blast of the loud-throated trumpets, a horrific silence reigned.
Almost under Bran’s feet, a broken shape writhed and groaned. The king bent down to the legionary who lay in a sticky red pool of his own blood. A single glance showed the Pict that the man, horribly crushed and shattered, was dying.
Lifting the bloody head, Bran placed his flask to the pulped lips and the Roman instinctively drank deep, gulping through splintered teeth. In the dim starlight Bran saw his glazed eyes roll.
“The walls fell,” muttered the dying man. “They crashed down like the skies falling on the day of doom. Ah Jove, the skies rained shards of granite and hailstones of marble!”
“I have felt no earthquake shock,” Bran scowled, puzzled.
“It was no earthquake,” muttered the Roman. “Before last dawn it began, the faint dim scratching and clawing far below the earth. We of the guard heard it – like rats burrowing, or like worms hollowing out the earth. Titus laughed at us, but all day long we heard it. Then at midnight the Tower quivered and seemed to settle – as if the foundations were being dug away –– ”
A shudder shook Bran Mak Morn. The worms of the earth! Thousands of vermin digging like moles far below the castle, burrowing away the foundations – gods, the land must be honeycombed with tunnels and caverns – these creatures were even less human than he had thought – what ghastly shapes of darkness had he invoked to his aid?
“What of Titus Sulla?” he asked, again holding the flask to the legionary’s lips; in that moment the dying Roman seemed to him almost like a brother.
“Even as the Tower shuddered we heard a fearful scream from the governor’s chamber,” muttered the soldier. “We rushed there – as we broke down the door we heard his shrieks – they seemed to recede – into the bowels of the earth! We rushed in; the chamber was empty. His blood-stained sword lay on the floor; in the stone flags of the floor a black hole gaped. Then – the – towers – reeled – the – roof – broke; – through – a – storm – of – crashing – walls – I – crawled –– ”
A strong convulsion shook the broken figure.
“Lay me down, friend,” whispered the Roman. “I die.”
He had ceased to breathe before Bran could comply. The Pict rose, mechanically cleansing his hands. He hastened from the spot, and as he galloped over the darkened fens, the weight of the accursed Black Stone under his cloak was as the weight of a foul nightmare on a mortal breast.