Chapter 5 · The Oath

"You’re not walking away from this," Lena Voss snapped, her hand still tight on the collar of Milo’s grease-stained shirt. She slammed him back against the cold brick of the alley wall, the impact knocking the wind out of him. "You have a dead core humming in your chest and half the Guild’s hunters on your scent. You think you can just run?"

Milo gasped, his boots scuffing the soot-covered pavement. He could smell the sharp, ozone scent of her leather gear and the faint, metallic tang of the pistol holstered at her hip. She was too close. He could see the gold flecks in her eyes, hard and impatient, and the way her breath hitched just a fraction. "I'm not running," he managed to choke out. "I'm... negotiating."

Lena let out a sharp, mocking laugh. She didn't let go. Instead, she leaned in, her chest nearly brushing his, forcing him to feel the sheer weight of her authority. "Negotiating? With what? You’re a scrap-heap apprentice with a debt that could buy a city block. You're a liability, Milo. A loud, glowing liability."

"I can fix things," he shot back, his voice gaining a sudden, desperate edge. "The core... it talks to me. I can make it do things your Guild’s textbooks say are impossible. You know it too. That's why you haven't dragged me to the interrogation cells yet."

Lena’s grip tightened. For a second, her gaze dropped to his lips, then snapped back up to his eyes. The tension between them wasn't just about the law; it was a wire pulled too tight, vibrating with something dangerous. She shifted her weight, pinning him more firmly. "Maybe I just like watching you squirm before I hand you over."

"Liar," Milo whispered. "You’re terrified of what they’ll do to me. And you’re even more terrified that I’m actually the one who can open that vault."

She froze. The silence of the alley rushed back in, heavy and suffocating. Then, slowly, she released his collar, but she didn't step back. She kept her hand resting on his chest, right over the spot where the sigil-core lived beneath his skin. He could feel the heat of her palm through the fabric, a searing contrast to the damp chill of the air.

"If I help you," she said, her voice dropping to a low, dangerous hum, "it's not because I like you. It's because the Guild is rotting from the inside, and you're the only wrench I've found that fits the bolt. But we do this my way. No secrets. No sudden disappearances. You belong to me until this is over."

"Belong to you?" Milo scoffed, though his heart was hammering against his ribs. "I've had enough people owning me, Inspector."

"This isn't ownership," she replied, her fingers curling slightly into his shirt. "It's a leash. And if you snap it, I'll be the one holding the collar when they drag you to the pyre. Do we have a deal, or do I call in the retrieval squad right now?"

Milo looked at her—really looked at her. She was cold, sharp, and completely out of his league, but she was the only thing standing between him and a shallow grave in the soot-fields. He swallowed hard. "What's the catch?"

"The Oath," Lena said, stepping back just enough to let him breathe, though the loss of her warmth felt strangely abrupt. She reached into her belt and pulled out a small, blackened iron cylinder. "The Gearwright's Oath. It's an old contract. Not the kind the Guild uses to bleed people dry, but the real thing. Blood and steel. If you swear it, the core stabilizes. It stops leaking signal. But it binds you to the partner who witnesses it. You can't lie to them. You can't betray them without the core ripping your heart out of your chest."

"Sounds like a great deal," Milo muttered, rubbing his neck. "I get to keep my heart, and in exchange, I become a magical GPS for a cop who hates me."

"Stop talking," she commanded, though a ghost of a smile touched her lips. "Just do it. Before the hunters pick up the trail again."

Milo looked at the iron cylinder. He thought of Bram, the only man who’d ever given him a chance. He thought of his sister, coughing up grey ash in a bed made of rags, needing the medicine only Guild credits could buy. He didn't have a choice. He never had a choice.

He reached out and grasped the cylinder. The moment his fingers touched the cold metal, the sigil-core in his chest flared. A violent, golden light erupted from his skin, illuminating the grime of the alleyway. He gasped, his knees buckling as a surge of raw power rushed through his veins, feeling like molten lead being poured into his arteries.

"Scream if you have to," Lena whispered, stepping back into his space, her hand hovering near his shoulder but not quite touching. "But don't you dare let go."

"I'm... not... letting go!" Milo roared, his voice echoing off the brick walls.