Gasping for air, Alvric ran. Brunhilde felt impossibly heavy in his arms, her skin cold, her breath a shallow whisper against his neck. The city's neon pulse blurred into streaks of desperate color. Every stride was agony. His lungs burned. His vision swam with residual venom, flashing images of his mother’s indifferent eyes. He pushed harder. The thought of Brunhilde’s sacrifice, her small hand pressed against his festering wound, fueled a searing guilt. It coiled in his gut, tighter than any monster's grip. He had exposed her. He had almost killed her. Blocks melted behind him. He wove through dark alleys, past overflowing dumpsters and flickering streetlights. The scent of ozone and fear clung to him. He clutched Brunhilde closer, shielding her fragile form from the harsh urban night. Finally, a nondescript building. No sign, just a peeling door tucked between a boarded-up storefront and a grimy laundromat. He kicked it open. The smell of antiseptic and something metallic hit him instantly. "Marcus!" Alvric's voice ripped, hoarse and ragged. Footsteps echoed from deeper within. A man emerged from a softly lit room, spectacles perched on his nose, a half-eaten sandwich in his hand. Doctor Marcus. His eyes, usually calm behind thick lenses, widened. Marcus was Alvric’s only confidant, his only tie to a semblance of normalcy. He was a scientist, a doctor, and, crucially, someone who understood the hidden world without succumbing to its darkness. "Alvric? What in God's name—" Marcus stopped, his gaze falling on Brunhilde. He dropped the sandwich. "Bring her here! Quickly!" Alvric moved, placing Brunhilde gently onto the sterile examination table in the center of the room. Her face was pale, almost translucent. A faint, bruised discoloration marred her forearm where she had absorbed the shadow venom. Marcus's hands moved with practiced speed. He checked her pulse, listened to her heart, his brow furrowed deeper with each passing second. He muttered to himself, words in a language Alvric didn't understand, his fingers tracing the faint, almost imperceptible lines of light that seemed to emanate from Brunhilde's skin. "What happened?" Marcus finally asked, his voice low, his expression grim. He injected a clear fluid into Brunhilde’s arm. Her eyelids fluttered, a soft moan escaping her lips. Alvric recounted the attack, the shadow wolves, the venom. He didn’t spare himself, detailing Brunhilde’s selfless act. His jaw tightened with each word, the shame a bitter taste on his tongue. Marcus listened, nodding slowly. He took a blood sample, his movements precise. He connected Brunhilde to monitors, the soft beeps the only sound in the tense silence. Alvric watched, helpless, a sensation he despised more than anything. "Her vitals are stabilizing," Marcus announced after a long moment. He wiped his hands, then turned to Alvric. "But her condition… it's unlike anything I’ve ever seen. Or read about." Alvric braced himself. "What do you mean?" Marcus adjusted his glasses. "Her body… it’s a living filter, Alvric. The venom you describe, the spiritual impurity, the malevolence… her system didn't just fight it off. It *absorbed* it. It *processed* it." Alvric felt a cold dread creep up his spine. "Processed? To what end?" "To purify it," Marcus said, his voice grave. "Her cells, her very essence, converted that dark energy into… nothing. Dissipated it. But at a terrible cost." Marcus pointed to the faint lines on Brunhilde’s arm, now almost invisible. "These aren't bruises from the venom. They are the residual energy pathways, the physical manifestation of her life force being siphoned away, burned up in the process of neutralizing that darkness." Alvric stumbled back, hitting a metal cart. The clang echoed sharply. His mind reeled. He, with his powers, his ability to perceive and manipulate the darkness in others, had always considered himself the master of such forces. Now, this girl, this innocent, was absorbing it, consuming it within herself. "So, every time she touches something… dark?" Alvric struggled to form the words. "Every time she absorbs significant external negativity or mystical corruption, yes," Marcus confirmed. His eyes held a profound sadness. "Her body sacrifices a part of itself to cleanse it. It’s an incredible, almost divine, ability. But it's unsustainable. Like a sponge designed to soak up poison, it will eventually rot from the inside." Alvric’s breath caught in his throat. His entire existence was predicated on navigating, controlling, and often inflicting darkness. His own abilities, his manipulations, his occasional acts of violence to maintain his position or protect his interests – all of it generated ripples of darkness. He had planned to protect her. To keep her safe. To build a wall of his own formidable power around her. But his power was rooted in the very darkness her body consumed. Every enemy he crushed, every mind he bent, every shadow he cast to shield her, would only generate more for her to absorb. He would be feeding the very process that was destroying her. His hands balled into fists, his knuckles white. The terrifying irony twisted his gut. His strength, his protection, was her poison. His attempts to shield her would only accelerate her demise. He was trapped in a horrifying paradox. "There has to be a way," Alvric whispered, his voice cracking. He felt a desperate urgency, a terror he hadn't known since childhood. His control, his meticulous planning, all of it was useless. Worse than useless. Marcus sighed, running a hand through his thinning hair. "I've seen ancient texts describing individuals with similar, albeit weaker, abilities. They were revered as purifiers, but their lives were always tragically short. They became martyrs." Alvric couldn't bear the thought. Brunhilde, a martyr? For him? For his dark world? No. He wouldn't allow it. He couldn’t. The guilt would shatter him completely. "What can we do? Is there an antidote? A treatment?" Alvric pressed, his voice rising with a frantic edge. He needed a solution. He *demanded* a solution. This was his fatal flaw, his absolute need for control, now screaming against the impenetrable wall of her unique biology. Marcus looked at him, his expression unreadable for a moment. He walked closer, his eyes intense. He didn't offer false hope. He offered a truth that felt like a death sentence. Marcus took Alvric by the shoulders and confessed with a trembling voice: 'Her blood is not human, Alvric. If she keeps absorbing your darkness, her heart will turn to stone in less than a month'.

El Precio de la Luz