Mara slumped against the slick wall of the nursery, every nerve screaming. Venom still numbed her limbs, a cold counterpoint to the raw, pulsing exhaustion that threatened to swallow her whole. Each breath rasped, burning with the grit of pulverized crystal that coated the air. Kael, meanwhile, showed no sign of fatigue. His movements were precise, unhurried, as he systematically scoured the devastated chamber. Not a single heavy breath escaped him. Once more, Mara felt the stark chasm between their natures. She had decimated countless Brine Scuttlers, but compared to Kael, her efforts felt like a mere whisper against a roaring tide. He drove his boot into the hardened sediment where the Queen Scuttler had rested. A massive slab of crystallized earth, heavy enough to crush a man, tore free with a crunch. It peeled away like brittle paper, revealing a hollowed space beneath. Hidden there, nestled within the damp earth, was a single object. It pulsed with a faint, silvery luminescence, the size of an adult’s fist. Kael stooped, lifting it with a gentle precision that belied his usual bluntness. He tossed it to Mara. She fumbled, catching the cold, smooth sphere. “What is this?” Mara asked, her voice raspy, a tremor still in her hand. “The Queen’s Core Crystal,” Kael replied, his gaze already sweeping the chamber once more. “I know *that*. But why give it to me?” “It’s not just any crystal. This holds the essence of the next queen. A crystallized nexus of her nascent power.” Kael’s eyes finally met hers, sharp as shards. “Better than a Saltmaw Eel’s gall. Consume it.” Mara stared at the glowing orb in her palm. Hesitation was a dull ache, but the memory of her near-death in this very chamber, the sudden surge of power, spurred her on. Closing her eyes, she brought the crystal to her mouth. Its surface fractured under the pressure of her teeth, a faint crackle of energy preceding its rupture. The contents were not liquid, but a concentrated, viscous brine, burning with a cold fire. It flowed down her throat, an internal crystallization tearing through her. Mara gasped, a silent scream clawing at her. Her body arched, writhing on the ground as if consumed by unseen tendrils of salt. The pain was beyond anything she had ever known. It wasn’t just a burn; it was her very being dissolving and reforming, every cell flayed and then re-crystallized. A sharp, searing dagger seemed to pierce her belly repeatedly, twisting, grinding bone to crystal, muscle to saline fiber. She thrashed, desperate for release, but Kael merely watched, his expression unreadable. “To walk these Shallows,” Kael’s voice cut through her agony, cold and clear, “you learn to break. Then you learn to rebuild.” It was the pain of becoming. By Kael’s standards, perhaps, it was barely a tremor. He turned away, leaving Mara to her suffering. He approached the colossal carcass of the Queen Scuttler. With a single, fluid motion of his blade, Tidecutter, he severed the head from the thorax. The cut was surgical, pristine, leaving the rest of the chitinous body intact. Retrieving such an unmarred Queen Scuttler carcass was a rare feat. Kael knew no waste. The Queen’s feelers, delicate yet potent, were prized for divining subtle briny curses. Her six articulated legs, thick as saplings, offered ideal material for crafting resilient weapons. Kael plunged his arm into the Queen’s torso. After a moment, his hand emerged, clasping another fist-sized crystal, this one a dull crimson, throbbing with latent energy. It was a Core Crystal of remarkably high purity, a concentrated node of the beast’s raw power. Such crystals weren't merely mined from the exposed deeps. Sometimes, powerful creatures, especially the queens, bore them. These often possessed a purity that surpassed common mined specimens, holding the creature’s very essence, making them incredibly versatile. The Queen’s titanium-like shell could be refined into top-tier armor, and her internal organs offered various other materials. Kael’s hand glowed faintly, and with a subtle ripple in the air, the entire Queen’s carcass vanished into his spatial pocket. Mara’s agony was far from over. She whimpered, curled into a tight ball, her body convulsing. Her vocal cords were too raw, her throat too constricted by the internal crystallization to even scream. It would be a long, brutal night for the Queen’s Core Crystal to fully integrate. Kael settled onto a jagged outcropping of salt-rock, grounding Tidecutter into the earth beside him. The blade, tempered with the heart of some long-dead, fiery deep-dweller, exuded a faint, crimson glow, a subtle hum emanating from its length. Such external changes meant little to Kael. What truly mattered was Tidecutter’s essence. He listened, his head cocked slightly, as if to an unheard voice. After some time, Kael spoke, his voice low, a rough murmur against the vast silence of the Shallows. “Right. I know. But there’s no helping it.” A pause. “Weakness only guarantees being swept away. Her fate, if she can’t harden.” Another long moment stretched, filled only by the wind’s sigh. “You know as well as I do. We’re running out of cycles. We need her, if we’re to find it.” “Yes. You’re right. But…” The strange conversation between the man and his weapon continued for a considerable time, a stark counterpoint to Mara’s suffering. Mara’s eyes fluttered open. Her entire body ached, as if hammered into a new shape. The lassitude in her limbs was a lingering echo of the night’s ordeal. At least her limbs remained, if not entirely her own. She focused inward, sensing her raw briny energy, and astonishment stole her breath. The internal flux, the very wellspring of her power, had multiplied. At least threefold. “Your flux channels are open,” Kael’s voice cut through the stillness. He stood now, drawing Tidecutter from the earth. “The dull edge is gone.” Mara pushed herself upright, every muscle protesting. “The crystal… it did this?” “It did. Some creature cores, particularly those of Queens, have the effect of boosting internal flux. Not every core, only special ones, like the one you consumed.” Kael turned, his silhouette stark against the faint glow of the Shallows’ ceiling. “Enough resting. How long do you intend to cling to the dust?” “Yes. Alright.” Mara gritted her teeth, flexing her aching legs. Complaining to Kael was futile, a waste of precious breath. It was better for her mind to simply obey, despite the pain. With a slow, deliberate pace, Mara followed Kael out of the ravaged nursery. The searing glare of the exposed Shallows, usually so harsh, felt unexpectedly welcome. She drew a deep breath, the salt-laced air burning, but invigorating. Kael, however, was already striding into the distance. Mara instinctively reached out with her power, manipulating the loose salt dust. Her body slid forward with newfound ease, gliding over the granular surface. With her amplified flux, she could command the subtle briny currents in the air and ground, moving without the strenuous effort of each step. Keeping pace with Kael no longer felt like a constant struggle. She adjusted the collar of her Saltmaw Eelhide cloak. The tears and punctures from the battle with the Scuttlers had already begun to mend, the resilient material regenerating. Within the span of half a day, the cloak had almost entirely restored itself, its ability to deflect abrasive winds and intense heat fully intact. The enhanced movement, combined with the cloak’s restorative properties, made traversing the desolate Shallows less arduous. Mara pulled a strip of dried Brine Eel jerky from her pouch, chewing slowly as she glided after Kael. *Where is his final destination?* In this vast, bleached landscape, she often wondered what Kael truly sought, where his relentless path led. Had they not been forced into this brutal companionship, she might not have cared. But now, she felt compelled to see it through, to discover his purpose. Just then, the air grew thick. A fierce salt gale swept in, abrasive winds carrying a deluge of crystalline dust that enveloped the entire area. Mara narrowed her eyes, pulling her cloak tighter. For an ordinary traveler, the gale would have been blinding, disorienting. But for Mara, it caused only a slight discomfort. Her heightened senses cut through the swirling dust. Her perception range had expanded significantly. She could sense Kael walking several meters ahead, each step resonating distinctly within her awareness. It was as if the very salt grains were relaying information about his presence, his mass, his intent. A new clarity, like two veins of purest crystal, pulsed within her core. *This is what it means to advance*, Mara mused. The deep orange hue of her internal energy now burned brighter, deeper, more stable. It was a status not recognized by any formal system, but by the raw, undeniable power she now commanded. Stronger than many she’d encountered, her flux command was immense. All thanks to Kael’s brutal, unrelenting push. She was progressing, unfettered by conventional wisdom. The key, she realized, was unburdened crystallization. Fighting with predetermined skills was limiting. Even with the same abilities, how they were imagined and applied made all the difference. To imagine endlessly, and manifest it into reality—this, to Mara, was the true essence of strength. A truth she would never have grasped without Kael. *Still, he’s a damned cold bastard.* He always pushed her to her limits, expecting her to survive, to overcome. If she couldn’t meet those expectations, he would cast her aside without a second thought. Now, being discarded held less terror, but she still wanted to follow him. Her conviction that by sticking with Kael to the end, she could become stronger, grew with every agonizing step. She refused to struggle, to be chased by weakness. She didn’t know where this path led, but by following Kael, she believed she could someday attain a strength akin to his own. Lost in thought, she walked until abruptly, the salt gale passed, and her vision cleared. Kael’s back was visible in the distance, focused on the path ahead. Despite dust piling on his shoulders, he walked without brushing it off. Then, he stopped. Abruptly. There was still ample light before sunset. It wasn’t Kael’s habit to rest this early. Mara glided to his side. He didn’t react, his gaze fixed on something on the horizon where the exposed seabed met the pale sky. Mara’s eyes followed. She gasped, a low sound caught in her throat. Something massive was moving, slowly, ponderously, yet with an undeniable sense of scale. It was a gigantic creature, armored in a shell like a weathered grey-blue mountain. What set it apart from any natural formation was its sheer size, thousands of times larger than any land tortoise, and its colossal shell, clearly shaped into a fortress. It moved with a deep, resonant thud, a vibration Mara felt through the crystalline earth. “What… what is that?” Mara whispered, disbelief thick in her voice. “The Shellback Fortress,” Kael replied, his gaze unwavering. “A beast? So immense? And that… that structure is on its back?” Mara couldn’t reconcile the sight. “Humans can tame such a leviathan?” It was an utterly unbelievable story, yet seeing the fortress-laden Shellback lumbering towards them, it was impossible not to believe. It moved slowly, but its colossal bulk meant it approached them with alarming speed. Up close, the Shellback Fortress was overwhelming, easily the size of an entire village. Finally, it halted directly before them. A massive gate within its fortress-shell groaned open, revealing a figure within. An old man, his face a roadmap of wrinkles etched by sun and salt. He adjusted his crude glasses with a gnarled finger, his sharp eyes settling on Kael. “I had my doubts from a distance,” the old man’s voice was gravelly, yet clear. “But it truly is you, Kael.”

Salt-Heart Resonance