The moon hung high over Blackiron Keep, casting long, jagged shadows through the narrow window of the solar Elyana had claimed as her workspace. The castle was silent, save for the rhythmic thud of boots from the patrols on the wall below.
On the heavy oak table, the remaining samples of the blackened grain sat in a row of glass vials.
Elyana adjusted the flame of her oil lamp. The air smelled of sulfur and stale dust. She pulled a stopper from a bottle of clear liquid—distilled vinegar mixed with crushed limestone—and used a dropper to release a single bead onto the blighted kernel.
If this were natural rot, the liquid would turn brown.
She held her breath. The droplet hit the grain. It sizzled, a tiny plume of purple smoke spiraling upward. The liquid didn't turn brown. It turned a vivid, glowing blue.
Elyana stared at the color, her heart hammering against her ribs.
"Blue," she whispered.
It wasn't rot. It wasn't moisture. It was Venom moss. A slow-acting alchemical agent used to contaminate water supplies in siege warfare. It accelerated decay a hundredfold.
And it was synthetic. It didn't grow in the wild; it was made in a lab.
She sat back, her hands trembling slightly. This was undeniable proof of sabotage. But more dangerous than the sabotage was the origin. Venom moss was a recipe found in the prohibited texts of the Southern Academies—texts her father possessed.
Whoever did this hadn't just tried to starve the North. They had tried to frame her.
The heavy door creaked open.
Elyana's hand flew to the dagger strapped beneath the table, but she relaxed when she saw the silhouette filling the frame.
Kyle entered, looking exhausted. His tunic was unlaced at the neck, and his hair was damp, likely from a late wash. He carried the smell of the cold night air with him.
"You're still awake," he stated, closing the door. "The servants say you missed dinner."
"I wasn't hungry." Elyana didn't move to cover the vials. There was no point in hiding now.
Kyle walked to the table. He looked down at the glowing blue liquid, his brow furrowing. "What is this? Witchcraft?"
"Chemistry," Elyana corrected. "Or alchemy, if you prefer the old word." She pointed to the vial. "This is the grain from the eastern silo. The one that started the spread."
Kyle leaned in, his grey eyes reflecting the strange blue light. "And what does the color mean?"
"It means nature didn't kill your harvest, Kyle. A man did."
The temperature in the room seemed to drop. Kyle straightened slowly. The exhaustion vanished from his face, replaced by a predator's alertness.
"Explain."
"This reaction," Elyana gestured to the smoke, "is specific to an agent called Venom moss. It's an artificial blight. Someone walked into your granaries, likely weeks ago, and scattered this powder among the sacks. Ideally, it would have stayed dormant until mid-winter, rotting the food when the snows were too deep to bring in supplies. The humidity from the storm just accelerated the process."
Kyle was silent. His jaw was set so hard a muscle twitched in his cheek. He walked to the window, staring out at the dark courtyard.
"Sabotage," he said, the word heavy and ugly. "Karst."
"It's the logical conclusion," Elyana agreed. "But there is a complication."
Kyle turned back to her. "What complication?"
"Venom moss is a Southern creation."
The silence stretched, tight as a bowstring.
Kyle looked at her—really looked at her. He wasn't reaching for his sword, but the trust they had built in the last forty-eight hours was suddenly fragile glass.
"Are you telling me," Kyle said, his voice dangerously soft, "that my wife, the daughter of the Southern Duke, just found Southern poison in my granary?"
"I am telling you that someone wants you to think that," Elyana said, standing up to meet his gaze. She didn't back down. "Think, Kyle. If I wanted to starve you, I would have let the grain burn. I wouldn't be sitting here at midnight showing you the evidence."
She picked up the vial. "This is a clumsy forgery. Real Venom moss smells of ozone. This smells of... copper." She wafted it toward him. "It's a local imitation. Someone tried to copy the recipe using Northern minerals. They wanted to destroy your food supply and ensure that if anyone investigated, the blame would fall squarely on me."
Kyle stared at her for a long moment. He took a breath, the scent of the chemical reaching him. He nodded once, accepting the logic.
"Who?" he asked.
"Whoever has access to the granaries," Elyana said. "And whoever has access to an apothecary's supply of copper salts and sulfur."
"The castle apothecary is old Maester Haren," Kyle said. "He's blind in one eye and loyal to the bone. He wouldn't do this."
"Then someone stole from him. Or someone else has a supply."
Kyle began to pace, the floorboards creaking under his weight. "Karst has spies everywhere. But to get someone inside the Keep... into the silos..." He stopped. "The guards. The shifts are rotated. Only the inner circle has the keys after dark."
"It has to be someone you trust," Elyana said gently. "That is the only way this works."
Kyle looked at the door, as if expecting the traitor to be listening. "If I start questioning my captains, they will panic. If word gets out that we were sabotaged, the men will look for a scapegoat. They will look at you."
"Then we don't tell them," Elyana said. She extinguished the flame under her test tube. "We don't announce a sabotage. We announce... an audit."
Kyle raised an eyebrow. "An audit?"
"We claim that due to the near-disaster, we are doing a full inventory of all supplies. Medicine, weapons, chemicals. We check the stocks. We see who is missing copper salts. We see whose logs don't match."
She stepped around the table, moving closer to him. "Let me do it. I am the Mistress of the House now. It is my duty to manage the stores. No one will question me counting jars of herbs. If I find the discrepancy, I bring it to you."
Kyle looked down at her. The suspicion was gone, replaced by a grim respect. He realized that she wasn't just solving a problem; she was hunting.
"You are dangerous, Elyana," he murmured.
"I have to be," she replied. "I married a Wolf."
Kyle let out a short, dry laugh. He reached out, his hand resting heavily on her shoulder. It was a grounding weight.
"Do it," he commanded. "Find them. But Elyana..."
His fingers tightened slightly on her shoulder.
"Be careful. If there is a traitor in these walls, and they realize you are on the scent... accidents happen."
"I know," she said.
"Take the Wolfguard with you tomorrow," he added. "Do not go into the cellars alone."
He pulled his hand back, the moment of intimacy broken by the reality of the threat. He turned to the door.
"Get some sleep. Tomorrow we hunt."
Elyana watched him leave. When the door clicked shut, she looked back at the glowing blue vial.
The game had changed. It wasn't just politics anymore. There was a rat in the walls, and Elyana was the only cat who could see in the dark.