In Cain's third month in the underground city, Marcus took him above ground for the first time.
Not above ground—deeper underground.
"You think the Dawnblade is just these seven levels?" Marcus walked ahead, holding an oil lamp that cast flickering shadows through the narrow tunnel. "That's just the tip of the iceberg."
Cain followed behind, his right hand resting on his sword hilt. The tunnel grew narrower. The rough stone walls turned smooth—not naturally formed, but polished by something. The air grew damp and carried an ancient smell, like a cellar sealed for centuries.
"Where are we going?" Cain asked.
"To meet the real Dawnblade."
At the end of the tunnel stood a door.
Not a wooden door. Not an iron door. A bronze door. Three meters tall, two meters wide, its surface covered with relief sculptures. Cain recognized the images—people fighting, people dying, people kneeling, people resisting. At the center of the composition stood a man holding a sword. His face had been worn away beyond recognition, but his posture—that straight spine, those outstretched arms—made Cain's breath catch.
It was the same posture his father had died in.
Marcus hung the oil lamp on an iron hook beside the door and pulled something from around his neck. Not a key. A silver coin.
Identical to the one Cain's father had left behind.
He pressed the coin into a recess at the center of the bronze door. The coin fit perfectly, seating with a dull click. Then the entire door began to vibrate.
Not the door itself—the mechanisms inside it. The sound of turning gears came from deep within the bronze, low and powerful, like some ancient beast waking from a thousand-year sleep.
The door swung open.
Cain saw light.
Not the cold glow of silver moss. Not the yellow flame of the oil lamp. A light he had never seen before—golden-red, warm, flickering, like the glow of sunset frozen in midair.
He stepped through the door and stopped.
He stood in a vast underground hall.
The ceiling rose so high he couldn't see the top. The walls were covered in murals and inscriptions. Broken stone slabs paved the floor, with grass and moss growing through the cracks. At the center of the hall stood a stone platform, and on it rested an object—a broken longsword, snapped in the middle, its upper half still planted in the platform, its lower half lying at its base.
But that wasn't what made Cain stop.
It was the people in the murals.
They weren't gods. They wore the same coarse linen clothes as Cain. They held the same iron swords as Cain. They had the same scars on their faces as Cain. They were fighting—not beasts, not mortals. Gods.
In one mural, a man drove his sword through a god's chest. The god's body dissolved into points of light, and on the man's body, black lines emerged—identical to the divine mark that had once appeared on Cain's left arm.
"This is the origin of the Dawnblade," Marcus's voice came from behind. "Not a resistance organization. Not a hidden stronghold. The Dawnblade is a people—people like you."
Cain turned to look at Marcus.
"Godslayers." Marcus spoke the word softly, like someone uttering a taboo sealed for a thousand years. "There was once a people in this world, born with the power to wound and kill gods. They were called Godslayers. The gods feared them. Hunted them. Took three hundred years to nearly wipe them out."
He looked at Cain, his gray-blue eyes holding a complex emotion.
"Your father was a descendant of the Godslayers. So are you."
Cain's right hand tightened around his sword hilt, his knuckles whitening.
"Did your father know about his bloodline?" Marcus asked.
"He knew," Cain said.
"He chose not to become a warrior. He chose to be a farmer. To take a wife and have children. To bury that history in the earth."
Marcus walked to the stone platform, bent down, and picked up the broken sword's tip. He held it up to Cain's face. On the blade tip, a line of small characters was carved—worn nearly illegible by time, but Cain could still make them out:
"Better a mortal man than a false god."
"These were the last words of the first Godslayer," Marcus said. "His name has been erased from history. The gods destroyed all records of him. Burned his portraits. Killed his clan. But they couldn't kill his bloodline."
He placed the blade tip back on the platform and turned to face the murals.
"The gods weren't born as gods," he said. "They were once human. Three thousand years ago, there were no gods in this world. Only humans and human wars. Then a group of people—twelve of them—found a way to obtain power. They used that power to end the wars. To establish order. And they were crowned as gods."
He paused.
"Then they changed."
Cain stood behind him, listening. He said nothing.
"Power corrupts everything," Marcus said. "At first, they truly protected humanity. But slowly, protection became control. Control became rule. Rule became enslavement. They began to see themselves as true masters and humans as nothing more than sheep."
He turned to look at Cain.
"Your father saw through this. That's why he stood up. But he had no power to change anything. All he could do was die."
Cain's eyes held no tears. Only those two flames of amber.
"You have power," Marcus said. "You have the Godslayer bloodline. You can kill them. But you must know—every time you kill a god, you will gain a portion of that god's power. And you will also inherit that god's curse. You will grow stronger. But you will also become less human."
He walked to Cain, crouched down, and looked him in the eye.
"This is your destiny. And your choice. You can turn away. Go back to your sister. Live out your life in this underground city. No one will force you. But if you choose this path—"
He reached out and took hold of Cain's right hand, the one still resting on his sword hilt.
"—you will no longer be ordinary. You will become a blade. A blade forged to kill gods."
Cain looked down at Marcus's hand around his. That hand was large, rough, with a long scar across the back—as if something sharp had once cut it open.
He was silent for a long time.
The hall was so quiet he could hear water dripping through cracks in the stone.
Then he raised his head and looked into Marcus's eyes.
"The silver coin my father left behind," he said. "It's also a key, isn't it?"
Marcus blinked. Then he laughed—the first time Cain had ever seen him laugh. Not a happy laugh. A bitter one, tinged with relief.
"You're clever," he said. "Cleverer than me. Cleverer than your father."
He released Cain's hand, stood, and walked back to the bronze door, taking down the oil lamp hanging beside it.
"That coin is the Godslayer's token. Every generation of Godslayer has one. It's not just the key to this hall. It's the key to many more secrets. But those secrets... you don't need to know them yet."
He pushed the door open and glanced back at Cain.
"Let's go. Time to go back. Your sister is waiting for you to eat."
Cain followed him out of the bronze door. The door closed behind them, and the sound of turning gears rose again—low and powerful, like some ancient oath echoing deep beneath the earth.
Cain touched the silver coin in his pocket.
It was still there, pressed against his father's keepsake, warm as a beating heart.
That night, Cain sat at the long table in the mess hall, eating with Lyra.
Lyra was no longer as thin as when she first arrived. The underground city's food was simple, but at least there was enough of it. A touch of color had returned to her cheeks. The redness and swelling had faded from her eyes. But her gaze was still different from before—the innocence and carefree lightness that should have belonged to a ten-year-old girl had vanished from this world.
"Cain," Lyra said suddenly.
"Yes."
"I learned a poem in class today."
Cain looked up at his sister.
Lyra set down her wooden spoon, straightened her back, and recited in a serious voice tinged with childishness:
"The gods sit high in heaven, looking down on mortals like ants. But they forget—ants can chew through a dike."
She finished and looked at Cain, her brown eyes—the same color as their mother's—holding a careful, hopeful look.
"Who wrote that?" Cain asked.
"The teacher said it was a rebel from three hundred years ago," Lyra said. "The Godservants killed him. But his poem survived."
Cain was silent for a moment.
"Do you think he was right?" Lyra asked.
"About which part?"
"'Ants can chew through a dike.'"
Cain looked at the soup in his bowl, now cold, a thin film of oil floating on its surface, reflecting the cold light of the silver moss.
"I don't know," he said. "But I'll try."
Lyra looked at him. The corners of her mouth lifted slightly—not a smile, just a small upward twitch, like a thin crack forming in a frozen river.
"You've changed a lot," she said. "But you're still my brother."
Cain lowered his head and continued drinking his soup.
He didn't tell Lyra where Marcus had taken him today.
He didn't tell Lyra that the blood in his veins could kill gods.
He didn't tell Lyra that he had already made his choice.
Some things were too heavy to say out loud. Too heavy even for him to carry alone.
He just silently finished his bowl of soup, stood up, picked up his sword from the table, and walked toward the training ground.
Lyra sat at the long table, watching his figure disappear into the tunnel. Then she lowered her head and continued eating her meal.
She didn't tell Cain that in class today, when the teacher spoke of the history of the Twelve Pillars and mentioned the King of Gods Zeus, she had snapped her writing stick in half.
People came and went in the mess hall. No one noticed this brother and sister.
In the underground city, everyone had their own scars. Some on their faces. Some in their hearts. Some had already scabbed over. Some were still bleeding.
But everyone was still alive.
And being alive, in itself, was an act of resistance.
That night's training went later than usual.
Cain stood before the wooden post, swinging his sword over and over. Five hundred times with his right hand. Six hundred with his left. His movements were no longer as clumsy as when he'd started. Every swing carried the sound of wind. Every impact left a deep gash in the post.
Iris stood at the post beside him, also swinging a sword—not shooting arrows. She wielded a short sword, lighter than Cain's, but her movements were just as crisp and clean.
"What's wrong with you today?" she asked between swings. "You're working even harder than usual."
Cain didn't answer.
"Marcus took you down below, didn't he?" Iris's voice dropped lower.
Cain stopped his sword and turned to look at her.
Iris didn't look back. She kept swinging.
"Don't look at me like that," she said. "I've been here three years. You think I don't know anything? There's a bronze door down there, isn't there? Everyone changes after Marcus takes them there."
She stopped, stuck her short sword into the ground, and turned to face Cain.
"He told you."
Not a question. A statement.
Cain nodded.
"So what did you choose?" Iris asked.
Cain looked at her. Her emerald eyes shone like two stars in the silver moss light. Her face held no curiosity, no expectation—only a calm, almost cold seriousness.
"I chose," Cain said.
Iris looked at him for a few seconds, then nodded.
"I chose too," she said. "Three years ago."
She bent down, picked up her short sword, returned to her post, and raised the blade.
"So don't die," she said. "If you die, I lose the only person I can train with."
She brought the sword down. It struck the post with a sharp crack.
Cain looked at her back. His lips moved, but in the end, he said nothing.
He turned, faced his own post, and raised his sword.
Five hundred with his right was done. Six hundred with his left—one hundred left to go.
He brought the sword down. Wood chips flew.
On the training ground, only the sound of blades cutting through the air remained.
Two people whose lives had been destroyed by the gods, deep beneath the earth, forging themselves into weapons.
Not for revenge.
For the next dawn.