A subtle shift in Kaelen’s physiological parameters registered in his internal monitoring. The dietary regimen, while sufficient for immediate caloric needs, lacked certain complex nutrients. “A diversification of protein sources is indicated,” Kaelen articulated to the empty air of his dwelling, a quiet conclusion following his morning combat simulations. “Specifically, aquatic fauna.” The most direct and efficient preparation method, considering his limited tools and reagents, would be thermal application in the presence of sodium chloride. “Salt-grilled,” he affirmed. The absence of more complex flavor enhancers, such as fermented leguminous condiments, was a quantifiable deficit, yet one that did not impede the primary objective of nutrient acquisition. “Tonight, salt-grilled river fish.” Once a course of action was determined, Kaelen’s methodology dictated immediate implementation. The arid plains of Aerthos offered no coastal access, but the Azureflow, a significant tributary to the south, presented a viable alternative. His mental database cross-referenced various aquatic species; while the specific analogues of *Plecoglossus altivelis* or *Oncorhynchus mykiss* from his world of origin were unlikely, any fluvial specimen would fulfill the protein requirement. His primary tool for this endeavor was the sharpened tip of a frost-oak branch, repurposed as an impact-and-pierce implement. The ideal design, incorporating a reverse-barbed tip for improved retention, was a minor engineering project that fell below the priority threshold for this expedition. Such specialized tools could be developed later. Prior to his current situation, Kaelen had not prioritized direct capture of animal protein, relying on foraging and more predictable energy sources. The tactical shift necessitated this adaptation. He checked his inventory: no flexible fiber containers were required; the primary objective was singular. With the frost-oak spear-analog in hand, Kaelen commenced his southward trajectory toward the Azureflow. His rationale for this expedition was purely pragmatic; recreational engagement was a statistically improbable outcome. Upon nearing the river’s edge, Kaelen registered a significant anomaly: a large reptilian form, a Grit-Scale Lurker, occupied a sun-warmed bank. Its morphology did not align with any known entry in the *Sorcerous Compendium: Basic Taxonomy*, thereby classifying it as a mundane organism rather than a magically-attuned beast. On Aerthos, millions of species existed devoid of the Aether-Cores that demarcated sorcerous entities. The presence of an Aether-Core near the cardiac plexus was the defining characteristic of a sorcerous beast, often correlating with enhanced aggression and physical capabilities. This distinction was why the Whisperwood Thicket, the verdant, magic-infused expanse surrounding his current location, had been largely devoid of conventional fauna, their niches usurped by more potent, Aether-infused predators. Yet, here was an animal, substantial in scale—exceeding five meters in length—but demonstrably non-sorcerous. Kaelen’s cognitive archives surfaced an obscure, almost trivial data point: an ancient terrestrial text, *Methodologies for Crocodilian Restraint*, which suggested approaching from the posterior aspect. A primary school friend had once presented this information. Kaelen had dismissed it as irrelevant at the time, a decision he now noted with detached irony. The utility of data often manifested in unpredictable contexts. However, direct engagement was not a prerequisite. The Grit-Scale Lurker remained unaware of his presence, its thermoregulatory cycle unbroken. Kaelen initiated a silent, upstream vector, maintaining an optimal distance of 50 meters. At this revised position, a series of percussive impacts and guttural roars reached him. The Lurker was engaged in combat. Despite his tactical decision to avoid the initial encounter, Kaelen’s analytical imperative compelled a closer observation. He initiated a low-profile approach, minimizing his acoustic and visual signatures. Through a screen of fluvial reeds, Kaelen observed the confrontation. A large bovine, identifiable as a Crag-Horned Grazer, executed a devastating charge, impaling the Grit-Scale Lurker with its formidable cranial protuberances. The Lurker’s life signs rapidly deteriorated, culminating in cessation of motor function. The Grazer, Kaelen noted, possessed significant mass and formidable natural weaponry. Its common occurrence near riverine and marshland biomes, often exhibiting localized wind-aetheric amplifications during charges, demanded caution. However, the current situation presented a unique opportunity to field-test a recently refined hydrokinetic technique. Kaelen extended his left arm, mentally constructing the complex parameters for a highly specialized cryo-kinetic projectile. A precisely shaped, high-density ice form, resembling a shearing blade, rapidly condensed above him. Accelerating along a parabolic trajectory, it achieved terminal velocity before descending with extreme precision onto the Crag-Horned Grazer’s cervical vertebrae. “Optimal impact achieved,” Kaelen registered, observing the clean severance. The Grazer’s head detached with a hydraulic spray of blood, dropping into the Azureflow. “Potential for dermal processing practice,” he murmured, approaching the two inert forms. However, a novel phenomenon presented itself. Both the Grazer’s head and the Lurker’s body, submerged in the water, began to visibly diminish in mass. “Unusual degradation kinetics,” Kaelen observed, his analytical faculties immediately engaging. He rapidly secured the Grazer’s main torso, pulling it ashore. Even during this swift retrieval, several torpedo-shaped ichthyofauna were already latched onto the exposed tissue. “Morphology consistent with aggressive carnivorous piscivores,” Kaelen noted. “Analogous to terrestrial *Pygocentrus* species, though not cataloged in the *Sorcerous Compendium*.” These Gore-Toothed Scavengers, approximately 40 centimeters in length, possessed disproportionately large, serrated dental structures. Kaelen employed his improvised spear to dislodge the immediate threats, then rapidly lowered the temperature of the entire Grazer torso to below its freezing point, solidifying the tissue and entrapping any remaining scavengers. In the interim, the Grazer’s head and the Lurker’s body in the water continued their rapid disintegration, eventually disappearing completely. The Gore-Toothed Scavengers, no longer detecting a blood signature, dispersed, and the Azureflow reverted to its pre-incident tranquility. “Aquatic activities in this zone are classified as high-risk,” Kaelen concluded, updating his internal hazard assessment. The entire engagement, from initial observation to resource stabilization, had transpired in under an hour. The rapid, biologically-driven dissolution of organic matter, exacerbated by the presence of blood and aggressive scavengers, represented a significant environmental variable Kaelen had not previously quantified. He secured the frozen Crag-Horned Grazer and the entrapped Gore-Toothed Scavengers in his dimensional storage apparatus. The immediate objective — acquisition of aquatic protein — had been successfully met. While the specimens differed from his initial, conceptualized models, they were demonstrably piscine. The Gore-Toothed Scavengers would serve as tonight’s salt-grilled meal. Beyond immediate sustenance, a more complex, long-term culinary possibility had emerged. Kaelen possessed no *Glycine max* legumes. The quintessential *shōyu*, a staple condiment from his world of origin, derived fundamentally from a fermentation process involving soybeans. Without the primary substrate, direct replication was impossible. However, his extensive knowledge base contained an alternative: *gyoshō*, or fish sauce. This was a *shōyu*-analogue, produced entirely from piscatorial fermentation. Its flavor profile was acknowledged to be more assertive, yet demonstrably compatible with a wide spectrum of terrestrial cuisine. While it would not be available for tonight’s meal, the long-term potential for creating a similar condiment was now tangible. “This process is viable and warrants execution,” Kaelen decided. The methodology for producing fish sauce was deceptively simple: salinate the ichthyofauna, then allow natural enzymatic and microbial processes to proceed over several months. The critical missing component was a suitable vessel. Kaelen could instantaneously generate containers using hydrokinetic manipulation, forming complex ice structures of any desired dimension. However, an ice-based vessel would maintain a cryogenic interior, a beneficial property for preservation but detrimental for fermentation, which required temperatures above the ambient freezing point. Optimal fermentation demanded specific thermohygric conditions. The prerequisite was a container constructed from organic material, specifically wood. Kaelen acknowledged his lack of expertise in traditional carpentry; the risk of structural failure or material compromise was non-trivial. The ideal scenario involved identifying a naturally occurring, barrel-like arboreal structure. “Candidates identified,” Kaelen noted, his gaze falling upon a cluster of ancient conifers near his home barrier within the Whisperwood Thicket. These trees, unlike their terrestrial counterparts, exhibited monumental proportions: trunks with diameters approaching two meters and heights exceeding ten. Felling such a specimen with conventional Earth-based heavy machinery would be challenging; without such technology, it was effectively impossible. However, Kaelen possessed his unique form of manipulation. His refined hydrokinetic stream, while capable of precise molecular agitation, still lacked the sustained kinetic energy required for efficient arboreal severance. However, the cryo-kinetic “Guillotine” projectile, which had so efficiently decapitated the Crag-Horned Grazer, offered a more direct solution. Kaelen initiated its deployment. The projectile cleaved approximately one meter into the trunk before its kinetic energy dissipated. “Suboptimal primary cut,” Kaelen noted, acknowledging the limitation. He recalibrated, projecting successive “Guillotine” impacts along the same plane. The massive conifer, its structural integrity compromised, yielded with a resonant acoustic discharge, falling across a swath of the surrounding undergrowth. Kaelen registered the localized habitat modification as an acceptable consequence. From the immense fallen trunk, Kaelen selected a one-meter section suitable for his barrel. He proceeded to sever this segment using the same repetitive cryo-kinetic shearing technique. The resulting timber block, two meters in diameter and one meter in height, presented itself as a substantial, disc-like form. The next phase involved hollowing its interior to create the required vessel. The choice of implement for this precise excavation was now the critical consideration.

Aqueous Sustenance and Structural Engineering