The radio unit clipped to Julia’s collar hummed with low, rhythmic static before a sharp beep cut through the rain. Julia didn’t take her eyes off Sarah, her hand steady on the silenced pistol, but her jaw tightened slightly as a voice crackled through the small speaker.
«Unit Four’s telemetry flatlined three minutes ago,» the voice reported, mechanical and devoid of emotion. «The target child remains in the lower quadrant. Commencing lockdown.»
Julia smiled, a slow, dangerous curve of her lips. «Understandable. Let’s make this quick, then.»
Down below in the shadows of the stairwell, Carlos heard the muffled voice over the echoing drops of water and burning debris. He froze, his fingers tightening around the grip of Marcus’s combat knife. The pain in his chest was a blinding, white-hot fire, but the sight of Julia’s shadow looming over Sarah at the edge of the pit burned hotter.
«Sarah,» Carlos called out, keeping his voice carefully level as he backed into the pitch-black frame of the service stairs, dragging the boy by the collar. «Keep her talking.»
«Why?» Sarah demanded, her voice shaking slightly as she stared down the barrel of Julia’s gun, slowly raising her hands. «If you already have the child’s trigger, why stay? Why drag my father into this?»
«Because your father isn’t the collateral, Sarah,» Julia said, taking a deliberate step forward, her combat boots clicking on the wet concrete. «He’s the key. The micro-filaments in that boy’s blood aren’t weaponized code. They’re a genetic key. And they only bind to one specific neural footprint.»
Julia paused at the edge, looking down into the deep, smoked-filled crater where Carlos had vanished.
«His.»
The revelation hit Carlos like a physical blow. He pulled the unconscious boy closer, ripping open the child’s collar. Beneath the skin, the faint purple threads weren’t just crawling—they were pulsing in rhythm with Carlos’s own hammering heartbeat. The boy was an exact biological match. A clone.
A rustle of loose gravel sounded directly behind Carlos in the darkness of the stairwell.
He whirled around, raising the knife. A shadowed figure stepped out from the landing below, illuminated only by the faint green glow of a night-vision visor. The figure raised a heavy, suppressed submachine gun, pointing it straight at Carlos’s chest.
«Don’t move,» a harsh, synthesized voice commanded.
Before the operative could pull the trigger, the heavy steel fire door behind him blew off its hinges with a concussive blast. The pressure wave slammed the operative forward, dumping him down the steps, his weapon clattering into the darkness below.
Through the clearing smoke in the stairwell, a tall figure in an unmarked tactical trench coat stepped over the shattered doorframe.
It was Mateo.
Carlos stared at him, his knife still raised, his pulse racing. «You were in the chopper. I saw you leave.»
«You saw a decoy,» Mateo said smoothly, stepping over the unconscious operative and lowering his own sidearm. He looked down at the child, then up at Carlos with an unreadable expression. «I told you, Carlos. I’m not playing Julia’s game. But if we don’t move in the next thirty seconds, neither of us makes it off this roof.»
«She’s got Sarah up there!» Carlos spat, blood slicking his chin.
«I know,» Mateo replied, reaching into his coat and pulling out a heavy detonator unit. «And she’s standing directly on top of the primary fuel line.»
Mateo didn’t hesitate. He thumbed the red switch on the detonator.
Mateo didn’t hesitate. He thumbed the red switch on the detonator.
A muffled, terrifying groan echoed through the steel skeleton of the building. High above, the floor beneath Julia’s feet buckled upward with a deafening roar. A wall of orange flame erupted from the ruptured line, blasting through the concrete support pillars and cutting Julia off from Sarah in a blinding wall of fire.
«Dad!» Sarah screamed through the roar of the blaze.
«Run, Sarah! To the west stairs!» Carlos yelled, charging back out into the open crater despite the agony tearing through his leg.
Julia, her coat singed by the sudden blast, lunged through the curtain of fire, her eyes wild with fury. She fired three rapid shots through the smoke. One bullet struck the concrete pillar next to Carlos, sending jagged splinters into his cheek, while another caught Mateo squarely in the shoulder, knocking him back onto the stairs.
Carlos didn’t stop. He threw his weight into Sarah as she sprinted toward him, tackling her into the doorway of the stairwell just as the upper ledge collapsed entirely, sending tons of burning iron and stone crashing down into the pit where they had stood seconds before.
They scrambled down the dark stairwell, Mateo clutching his bleeding shoulder, Carlos carrying the boy over his uninjured arm. The building was shaking violently now, structural alarms wailing from every level as smoke choked the air.
«Out the side loading dock,» Mateo panted, slapping a security card into the electronic lock at the base of the stairs. The heavy steel door clicked open, revealing the rain-slicked alleyway outside.
They burst into the cold night air, the torrential rain instantly soaking their clothes. Waiting in the narrow alley was an idling black armored SUV, its back doors hanging wide open.
«Get in!» Mateo shouted, shoving Sarah toward the cabin.
Carlos hesitated at the threshold, holding the boy tight against his chest. He looked back at the burning tower, then turned his gaze sharply onto Mateo. «Why help us now? What’s the boy to you?»
Mateo looked at Carlos, a grim, haunting expression crossing his face under the amber streetlights.
«He’s not Julia’s key, Carlos,» Mateo whispered, his voice barely audible over the roaring fire above. «He’s yours. Because twelve years ago, when you thought your wife died in that lab explosion… she didn’t.»
Mateo pointed a trembling finger toward the tinted front window of the SUV.
Carlos slowly looked through the glass. Sitting in the driver’s seat, her face illuminated by the dashboard lights, staring back at him with tears streaming down her face, was a woman he had buried over a decade ago.