The Last cohort

THE COST OF A MILE

The Sword of Mars was a cage for a thunderstorm. In Marcus’s grip, it vibrated with a low, incessant hum, a note of pure violence that resonated in his teeth and bones. The crimson aura sheathing the blade pulsed in time with his own heartbeat, a syncopated rhythm that felt alien and threatening. Visions flickered at the edge of his sight: phalanxes of legionaries in archaic armor battling giants of smoke and shadow, a sky raining fire, the triumphant roar of a god who knew only conquest.

It was not a tool. It was a demand.

“We must go. Now.” Bran’s voice was strained, his eyes fixed not on the sword, but on the lake. The water, once stagnant, now churned with a new, restless energy. “Taking the sword has torn a wound in this place. The Fomorii will feel its absence like a severed limb. Their rage will be immediate and absolute.”

Hrothgar leaned heavily on his Dane-axe, his face ashen. The flesh on his side remained a withered, dead grey, and a faint, cold mist seemed to emanate from the wound. He had paid a price in life-force that no medicine could restore. “The sea wolf is right,” he grunted. “This is a place of death. We are not welcome here.”

The retreat from the Lake of Tears was a grim, hurried exodus. The oppressive sorrow had lifted, but it was replaced by a palpable sense of pursuit, of a vast attention now focused solely on them. They did not retrace their steps through the deep marsh. Using the elevated, firmer ground of the collapsed watchtower’s rubble, they struck out north, aiming to bypass the worst of the bog and meet the Saxon longships at a prearranged coastal rendezvous.

Marcus walked at the center of the column, the sword a leaden weight in his hand. He had tried to sheathe it, but no scabbard he possessed would accept it. He carried it bare, and its influence bled into the world around him.

The interactivity was subtle and unsettling. As Marcus passed, the few hardy, blighted plants at the marsh’s edge would suddenly straighten, their leaves turning a vibrant, aggressive green for a moment before wilting again. A patch of grey moss would flash with a coppery glint. The very air around him tasted of hot iron and ozone.

“The sword… it pushes back the corruption,” Morganna observed, her gaze wary as she watched a twisted sapling briefly snap upright as Marcus passed. “But it does not heal. It merely asserts a different kind of dominance.”

“It is the power of imposed order,” Bran said, keeping a cautious distance from Marcus. “The law of the legion and the wall. It does not nurture life; it demands obedience from it. Be careful, Aquila. It does not just want to be held. It wants to be used.”

The effects on Marcus himself were more profound. His senses were heightened to a painful degree. He could hear the heartbeat of the man marching ten paces ahead, could see the individual fibers in the wool of Morganna’s cloak. But his empathy was being scoured away, replaced by a cold, calculating clarity. When Septimus reported the loss of two more men to a sudden sinkhole, Marcus felt a spike of irritation at the delay, not grief for the lives.

“We need to move faster,” he heard himself say, his voice sharper than he intended. “The objective is the rendezvous. Casualties are a factor of the march.”

Septimus stared at him, a flicker of hurt and confusion in the old soldier’s eyes. “They were good men, sir.”

“They were soldiers,” Marcus replied, the words feeling true and terrible in his mouth. The sword hummed its approval against his palm.

It was Morganna who challenged him directly. During a brief halt, she stepped in front of him, her grey eyes searching his. “Look at me, Roman.”

He met her gaze. The human concern he usually saw there was now an impediment to his focus. “What is it, Princess? We are wasting light.”

“The man who carried me across the Ford of Sorrows would not call his fallen men ‘factors’,” she said, her voice low and fierce. “That thing is changing you. Fight it.”

Her words were a splash of cold water. For a second, the relentless hum of the sword faded, and he felt the full, sickening weight of his own words. He saw the weary, trusting faces of the men around him, not as assets, but as companions. The vision of the battlefield faded, replaced by the memory of Hrothgar’s sacrifice.

He took a shuddering breath, forcibly pushing the sword’s influence back. It was like holding a raging dog on a thin leash. “I… I am fighting it,” he managed to grit out.

The journey became a dual battle: a physical race against the pursuing darkness, and an internal war within Marcus for his own soul. The others saw the struggle. Valerius, with the wisdom of a commander who had seen men break under less, took to walking beside him, his steady, pragmatic presence a grounding anchor. Cynfor offered him a waterskin, a simple act of camaraderie that served as a reminder of their pact.

Hrothgar, despite his own agony, would occasionally grunt, “The axe is heavy, boy. But your arm grows strong. Do not let the weight choose its own target.”

They pushed on, the marsh giving way to firmer, rolling coastal hills. The scent of salt air was a promise of salvation. But as they crested the final ridge, their hope curdled.

The rendezvous point, a sheltered cove, was in sight. But so was the Saxon fleet. And they were under attack.

Not from the Fomorii. From the sea itself.

The water of the cove was alive with serpentine forms of churning foam and hatred—more Water Wraiths, drawn by the sword’s power. They lashed at the longships, which were fighting a desperate, losing battle. Oars were shattered, sails ripped to shreds. One ship was already on its side, its crew dragged beneath the waves by spectral hands.

And on the cliff above the cove, shrouded in the mist of its own making, stood the Shadow in the Mist. It had found them. Its form was more solid now, a towering figure of darkness and cold fury. It did not need to speak. Its presence was a declaration: the hunt was over.

Marcus felt the Sword of Mars surge in his hand, its hum becoming a deafening roar. It was eager. It recognized its true enemy.

The entire company froze on the ridge, caught between the horror on the sea and the terror on the cliff. They had paid the cost in blood and spirit for every mile. They had the weapon. But they were trapped, the sword’s power a beacon that had called their doom right to them.

Marcus looked from the stricken fleet to the looming Shadow. The sword’s demand for violence was a drumbeat in his skull. But as he met Morganna’s determined stare, saw Hrothgar’s stubborn grip on his axe, and felt the solid presence of his Centurion, a different plan, a human plan, began to form.

He tightened his grip on the sword, not in submission to its will, but in mastery of it. The cost of the next mile would be the highest yet. It would be paid not just in blood, but in a choice. Would he wield the sword, or would it wield him?

“Bran,” Marcus said, his voice cutting through the wind and the distant screams. “Can you give the Saxons a path through those wraiths?”

Bran followed his gaze. “For a moment. No more.”

“A moment is all they will need.” Marcus turned to the others, his eyes clear for the first time since touching the sword. “We are not going to the ships. We are bringing the ships to us. We make our stand here.”