The mine was called Winter’s Lament, and it had been eating men for three hundred years.
Cassian rode to it on a morning so cold the sky seemed made of iron.
The road twisted through a narrow valley where the pines grew stunted and the snow lay ten feet deep in the hollows.
Henrik rode beside him, his face wrapped in a scarf, his hand never straying far from his sword.
Rolf had been left at the castle with a fever—nothing serious, Gerhardt had assured him, but the old soldier was not young anymore.
Cassian had ordered him to rest.
He knew exactly where he was going.
He had made this ride before, in another life.
He had walked these tunnels, stood before that door, and taken what lay behind it.
The memory was cold and sharp, like a splinter of ice lodged in his mind.
The mine entrance came into view around a bend in the road: a black wound cut into the side of the mountain, surrounded by wooden scaffolding and slag heaps and the huddled shapes of work sheds.
A village had grown up around it, though “village” was a generous word.
It was a camp, really—rows of rough cabins, a single tavern, a smithy that never stopped ringing.
The air smelled of smoke and iron and the faint, acrid tang of something Cassian could not name.
He reined in his horse at the edge of the camp.
Workers in thick coats and patched gloves moved between the buildings, their heads down, their faces hollow.
No one looked up.
No one noticed the duke.
“The foreman’s office is near the main shaft,” Henrik said.
“Shall I announce you?” “No.” Cassian dismounted.
“I want to see the mine as the miners see it.” Henrik hesitated.
“Your Grace, the deep shafts are not safe.
There have been collapses in the past.
If you want reports on the mine’s output, the foreman can bring them to the castle.” “I do not want reports.
I want to see.” He walked toward the mine entrance without waiting for a reply.
The air changed the moment he stepped inside.
The cold of the surface gave way to a damp, pressing heat that seemed to seep through his coat and cling to his skin.
The walls were rough-hewn stone, glistening with moisture.
Lanterns hung from iron hooks at intervals, their light feeble and flickering, barely pushing back the dark.
The tunnel sloped downward, deeper and deeper, until the grey rectangle of daylight behind him was the size of a postage stamp.
A boy—barely old enough to grow a beard—scrambled past Cassian with a bucket of water, nearly colliding with Henrik.
He looked up, saw the duke’s face, and froze.
“Your—Your Grace?” Cassian looked at the boy.
His hands were blistered.
His shoulders were too thin.
He could not have been more than fifteen.
“What is your name?” Cassian asked.
“Tomas, Your Grace.” “How long have you worked here, Tomas?” “Four years, Your Grace.
Since my father died in the east shaft.” Cassian said nothing.
He reached into his coat and pulled out a silver coin—the same as he had given the old woman in Elvenholm.
He pressed it into the boy’s hand.
“Take the day,” he said.
“Go to the surface.
Eat something warm.” The boy stared at the coin as if it were a holy relic.
“Your Grace…
I don’t…” “Go.” Tomas fled up the tunnel, the bucket forgotten, the silver clutched to his chest.
Henrik watched him go.
“Four years,” he said quietly.
“He would have been eleven when he started.” “I know.” The foreman found them near the main shaft, where the tunnel opened into a cavern so vast that the lanterns could not reach its ceiling.
He was a big man, broad-shouldered and heavy-jawed, with a face that looked like it had been carved from the same stone as the mine.
His name was Gregor.
He had been the foreman for twelve years.
“Your Grace,” Gregor said, bowing low.
“I was not told you were coming.
If I had known, I would have prepared—” “You would have hidden the worst of it,” Cassian said.
“I did not want it hidden.” Gregor’s face paled.
“Your Grace, I assure you, the mine is run efficiently—” “I am not here to discuss output.” Cassian looked past him at the cavern.
Men worked along the walls, their picks rising and falling in a slow, weary rhythm.
The air was thick with dust.
Somewhere in the darkness, someone was coughing—a deep, wet sound that did not stop.
“I want to see the deep shaft.” Gregor’s eyes widened.
“Your Grace, the deep shaft is dangerous.
The supports are old.
There have been tremors.” “I did not ask for guarantees.
Take me there.” The deep shaft was older than the rest of the mine.
Its walls were smooth, carved by tools that had not been used in centuries.
The lanterns were fewer here, the darkness thicker.
The air was cold—colder than it had any right to be, this far underground.
Cassian could see his breath.
He knew this path.
He had walked it before.
Gregor led the way, his lamp raised high.
Henrik walked with his hand on his sword, his eyes scanning the shadows.
Cassian followed in silence, his mind already at the door.
At the end of the tunnel, they reached it.
A vault door of black iron, set into the living rock.
Runes covered its surface, glowing faintly green, pulsing like a sluggish heartbeat.
Cassian stopped.
He knew this door.
He had shattered these runes in another life, blind with arrogance and the whisper of power.
He had taken what was behind it and let it consume him.
What he had not known—what he had never known—was who put the runes there.
Henrik stared at the door.
“What is this?” Gregor swallowed.
“An old vault.
It’s been here for centuries.
But those runes appeared about sixteen years ago.
One day the door was ordinary iron, the next it was…
that.
The miners don’t go near it anymore.” Cassian stepped forward and laid his palm against the cold iron.
The cold bit into his skin.
He felt something on the other side—something ancient, patient, aware.
It knew he was there.
A voice spoke from the darkness behind them.
“You shouldn’t be here.” Cassian turned.
An old man stood in the tunnel.
His back was bent, his face a map of deep wrinkles.
His eyes were pale and milky, half-blind, but fixed on Cassian with an almost physical intensity.
“You shouldn’t be here,” the old man repeated.
“That door is cursed.” Gregor stepped forward.
“Old Tobin, go back to the surface.
The duke does not need—” “The duke needs to listen.” Tobin did not move.
“I’ve worked this mine for sixty years.
I was here when the runes appeared.
I saw her.” Cassian’s hand fell from the door.
“Her?” “Your mother.
She came down with an old mage from the capital.
Her hands bled onto the iron.
She said, ‘My son will not become what his father became.’ A week later, she was dead.” The silence that followed was absolute.
Cassian felt his heart stop, then start again with a hard, slow beat.
His mother.
The fever that had taken her when he was twelve.
He had stood at her grave in the cold rain, a boy who did not understand.
And all that time, she had carried this.
She had sealed a curse with her own blood to give him a chance.
In his first life, he had shattered these runes without a thought.
He had taken the sword.
He had become exactly what she had feared.
No one spoke.
Henrik’s hand was frozen on his sword.
Gregor had gone pale.
Cassian looked back at the door.
The runes glowed green, steady and patient.
His mother’s runes.
His mother’s blood.
Her final gift—one he had trampled in another life without even knowing it existed.
“Your Grace,” Henrik said, his voice barely above a whisper.
“We should leave.” Cassian did not move.
He stood before the black iron, his breath misting in the cold.
The thing behind the door was still there.
Still waiting.
Still aware.
He knew what it was.
He had carried it once.
His fingers brushed the iron once more—not in reverence, but in acknowledgment.
Then he turned.
Tobin’s voice followed him up the tunnel.
“Don’t, my lord.
It will take everything you are.
Don’t let her sacrifice be for nothing.” Cassian did not answer.
He walked into the pale light of the surface and did not look back.
That night, alone in his study, he wrote by candlelight.
He recorded the mine’s conditions.
The boy Tomas.
The ventilation shafts.
The foreman’s negligence.
The old man’s warning.
At the bottom of the page, he added a line, smaller than the rest: She bled to seal it.
I broke it once.
I will not break it again.
He set the quill down.
The candle flickered.
Far below the mountain, in the silence of the sealed vault, something ancient waited.
Patient.
Certain.
It knew he would return.