The air on the Second Floor this time was a thick, sulfurous soup that tasted of scorched iron, wet ash, and ancient, stagnant magic. Every breath felt like inhaling through a wool blanket soaked in vinegar.

  Josh rolled his shoulders, hearing the satisfying creak of his new leather straps settling against his pauldrons. He adjusted the fit of his gauntlets, feeling the way the hide had softened from the relentless humidity of the deeper shafts. They had been in the tunnels for barely an hour, blazing through the initial zones and farming spots with a terrifying efficiency that spoke of their growing power. The "grind" felt less like a chore and more like a warm-up, though the oppressive heat of the deeper shafts was already slicking their skin with sweat. They’d already seen several differences with the dungeon on this run, and were finding more as they went.

  "Keep it tight," Josh called out, his voice raspy from the dry heat. He didn't need to bark orders anymore; the party moved with an instinctive rhythm. He glanced back at Brett, his friend wasn't plodding along in the backline like usual; he was practically vibrating with energy, testing small bursts of flame at his heels with every few steps.

  "I'm getting the timing down," Brett muttered, more to himself than the group. He hopped over a fissure, a small pop of orange fire propelling him further than his muscles should have allowed. "If I pulse the mana right as my heel leaves the ground... less drag. I don't want to be planted like a turret if the floor starts moving again."

  "Just watch your mana reserves," Carcan cautioned, though she couldn't hide a smirk at the mage's enthusiasm.

  Ahead, the tunnel widened into a jagged amphitheatre of obsidian and red-veined quartz. Brett said “I think this is the 'Warren of the Red Hand,' a part of the dungeon that spawns randomly. It’s well known for its density of Kobold Skirmishers.” Unlike the clumsy, chattering dwellers of the First Floor, these were Kobolds were bred for ambush and coordinated slaughter, as the party had found out last time.

  A chorus of sharp, rhythmic yapping echoed off the walls, not the chaotic barking of wild dogs, but the staccato commands of a military unit.

  Then, the ground beneath them trembled.

  "Contact!" Perberos hissed.

  Ten Kobold Skirmishers emerged from the floor. At least one of them had an earth-meld ability, allowing the group to swim through the loose scree and erupt underfoot like landsharks.

  Debris exploded upwards. A kobold burst from the ground directly between Brett and Carcan, its jagged spear already thrusting toward the mage’s unarmoured thigh.

  "Brett! Shift!" Josh roared, planting his feet to intercept a second attacker.

  Brett didn't panic. In the past, he would have thrown up a shield and prayed, or blasted away with several firebolts. This time, he looked at the space three feet to his left. He visualized the mana concentrating in the soles of his boots, not as a gentle lift, but as an explosion.

  Phoenix Step.

  A burst of orange fire detonated beneath his feet. The move wasn't graceful, it looked more like he’d been kicked by an invisible mule, but it propelled him sideways with violent speed and the spear stabbed through the empty air where his leg had been a microsecond before.

  Brett landed in a crouch, skidding on the obsidian. "Ha! It works!"

  He didn't waste the momentum. As the Skirmisher pivoted, disoriented by the mage’s sudden displacement, Brett recalled the terrifying pressure of the Forge-Master’s hammer, the way it compressed the very air before impact. Mimicking that density, he funneled more mana into the centre of the spell, crushing the flame down until it shifted from a lazy orange to a searing, blinding white.

  He released it, and the bolt screamed across the gap. It struck the Skirmisher in the chest with the kinetic force of a warhammer, not merely burning the creature but lifting it off its feet and shattering its ramshackle breastplate in a shower of sparks.

  Brett let out a ragged whoop of triumph as his theory held. Josh’s recent progression with the shield had lit a fire under him, forcing him back to the drawing board to evolve his own arsenal before he was left behind.

  "Don't get cocky!" Josh shouted, stepping into the fray.

  A kobold lunged at Josh’s midsection with a rusted falchion. Josh snapped the metal rim of his shield upward, catching the blade and wrenching it sideways with a shriek of tearing metal. As the creature stumbled, its guard broken, Josh stabbed with Fang of the Dawn.

  The longsword sang cut through the air, a clean silver arc that caught the flickering torchlight. The blade felt weightless, the dexterity bonus guiding his hand. With a precise, lunging thrust, he caught the skirmisher in the narrow gap between its leather breastplate and its gorget. The steel slid home, and the kobold crumpled without a sound.

  "Three more coming from the ceiling!" Perberos shouted from the shadows.

  The elf didn't wait for them to land. He drew two arrows and fired them so quickly that the movement was almost too fast for the human eye to follow. The arrows thudded into each kobold in vital areas, crippling hits, but not kill shots. They fell like stones, hitting the ground with sickening crunches, only to be finished off by Bhel’s heavy boots as he moved to support the flank.

  "They're getting smarter," Bhel grunted, his axes cleaving through a shield and the arm holding it. "They're testing our reaction times! One feints to draw a big swing, and the pack moves in while I'm off balance. They're trying to flank us!"

  "Then stop with the over the top swinging!" Josh advised, stepping into a gap to cover Bhel’s blind spot as a Skirmisher tried to circle the dwarf.

  Bhel grunted acknowledgement, shortening his grip and using the axe-head like a boxing glove to punch a kobold in the snout.

  They realised that the skirmishers were just the vanguard, as from the dark tunnels a warm orange glow began to build.

  "Casters!" Carcan warned. "Kobold Pyromancers!"

  "Carcan! Barrier!" Josh yelled, bringing his shield up to cover his face, positioning himself in front of the party. He activated Bulwark Aura and Unyielding Step simultaneously, planting his boots into the obsidian and bracing for the impact, hoping he could handle the damage for the party and knowing he’d need the skills' weight to keep him grounded against the blast.

  A wall of translucent blue light snapped into existence ahead of Josh just as the fire slammed into it. But the reprieve was momentary. The sheer thermal mass of the attack overwhelmed the weakened mana structure and within a moment the barrier shattered like glass under a hammer.

  However, Carcan’s magic had done its job, it had stripped the core heat from the spell. The flames that punched through were ragged and dispersed, washing over Josh rather than incinerating him. They lapped hungrily around the edges of his shield, singing the ends of his hair and blistering the exposed skin on his neck with a sharp, stinging heat, but the lethal force was gone.

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  "I can't hold it if they keep up a sustained barrage!" she cried, her staff trembling as the shards of her ward faded.

  "Brett! Suppress them!" Josh ordered.

  Brett looked at the three Pyromancers clustered together. A single Fireball would be poetic, but against creatures born of the forge, it would be like throwing water into the ocean. He didn't need to kill them with damage; he needed to break their focus.

  He shifted his grip on his staff, abandoning power for pure speed. He didn't weave a complex matrix; he just pulled raw fire mana and shaped it into small, dense projectiles, casting Ignis Ray.

  He unleashed a staccato barrage of stinging firebolts. He didn't aim for their toughened hides; he aimed for their eyes, their open chanting mouths, and the glowing foci in their hands.

  Snap-Snap-Snap.

  The bolts peppered the Pyromancers like angry hornets. One kobold took a spark to the snout and flinched violently, its chant dissolving into a sneeze of smoke. Another was forced to break its casting stance to swat away a bolt aimed at its ear. The third tried to maintain its spell, but Brett fired a shot directly at the ground between its feet, kicking up a cloud of blinding soot and ash.

  The coordinated barrage faltered. The rhythmic chanting collapsed into confused yapping as they scrambled to protect their faces, their magical pressure on the party evaporating.

  "Now! Push!" Josh commanded, seeing the opening.

  The party moved as one unit, a phalanx of steel and fury. Josh led the charge, his shield acting as a plow. He felt every impact, the jar of a desperate spear against wood, the scrape of claws against his greaves but he didn't stop. He was learning to read the flow of the fight. He could feel where the pressure was highest, where the enemy formation was brittle.

  He reached the first disoriented Pyromancer and returned to the first thing he really learnt in this world.

  Stab. Twist. Pivot.

  It was a brutal, ugly scramble. In the narrow corridor, the sword was a surgical instrument. He battered aside a weak defense with his shield rim and drove the blade into the Pyromancer’s ribs. He felt the rhythm of his own breathing, matching it to his strikes. Each kill wasn't a triumph; it was a checkbox marked off on a long list of tasks required to survive.

  They continued to push through the Warren, leaving a trail of gray-scaled bodies and scorched stone behind them.

  The next challenge was at a natural bridge of stone, barely five feet wide, spanned a drop so deep that torches dropped into it simply vanished into the dark long before hitting the bottom. Wind howled up from the abyss, carrying the scent of deep earth and ozone.

  Guarding that bridge were the Kobold Sentinels, heavy infantry equipped with long-reach halberds and tower shields. They stood three abreast, blocking the path completely, their shields interlocked in a wall of iron.

  "We can't charge them," Perberos noted, peering around the corner of the tunnel entrance. "They have the reach advantage, and that shield wall is solid. One slip, and we're into the abyss. And with that wind, arrows will drift if I fire from here."

  "We don't charge," Josh said, wiping sweat and ichor from his brow. He looked at the mage. "We make them charge us. Brett, can you reach them?"

  "I can't blast through the shields directly," Brett assessed, gauging the distance. "But I can lob Fireballs over the top. Turn their position into an hazard to stay in."

  "Do it," Josh ordered. "Drive them forward. If they stay, they burn. If they run, they have to come through me. Perberos, get high. Find a perch where the wind is blocked and punish them when they break formation." He drew Fang of the Dusk from his side, knowing he will need the extra constitution for this fight. The shortsword felt mean and heavy in his hand.

  "Understood," Perberos whispered. He activated his cloak, melding into the shadows of the cavern wall. He scaled the rock face with spider-like grace, finding a cluster of stalactites high above the bridge that offered a perfect, wind-shielded vantage point.

  Brett stepped out of cover, but he didn't aim directly at the kobolds. He hefted his staff like a mortar.

  "Fire in the hole!"

  He lobbed a heavy, pulsating Fireball in a high arc. It soared over the shield wall and detonated on the bridge behind and amongst the Sentinels. The explosion roared, sending a shockwave that rattled their armour from the rear.

  BOOM.

  He lobbed another. And another.

  The bridge became a gauntlet of flame. The Sentinels panicked. They couldn't turn back into the fire, and they couldn't stay in formation while the stone beneath them heated to searing temperatures. Their discipline broke. With nowhere else to go, they lowered their halberds and charged the only safe exit, directly at Josh.

  "Here they come!" Josh roared, planting his feet at the very edge of the bridgehead where the tunnel widened. He activated Unyielding Step, his shield glowing with golden light.

  The lead Sentinel slammed into him. It was like being hit by a boulder, but Josh was the mountain. He absorbed the impact, his boots grinding into the stone but not giving an inch. He caught the Sentinel’s halberd shaft on his shield rim and shoved back, stalling the charge.

  Thwip. Thwip.

  From high above, death rained down. Perberos, perched securely in the stalactites, fired arrows straight down into the chaos. With the Sentinels pressing forward, their backs and necks were exposed to the high angle. Two kobolds dropped instantly, shafts protruding from their shoulders.

  "Bhel! Clean up!" Josh shouted, shoving the lead Sentinel back into the pack.

  Bhel stepped past Josh’s flank, his axe singing. "Timber!"

  The dwarf chopped the legs out from under the lead Sentinel that was being pressed into Josh, sending it tumbling backwards and off the bridge, into the abyss with a fading scream.

  Brett, seeing a straggler trying to lean over the side of the bridge, triggered Phoenix Step. He blinked sideways, dodging a desperate spear throw, and punished the attacker with a near point-blank Fire Bolt that sent it skidding back into the fire.

  By the time the smoke cleared, the bridge was empty of enemies, save for the victorious party standing at the threshold.

  "Check your gear," Josh said, his chest heaving. "We must be nearing the boss room entrance soon?"

  They spent the next hour in a slow, methodical crawl. They encountered 'Trap-Smiths', a kobold who didn't fight but laid ingenious pressure-plate traps that fired poison needles or dropped heavy iron cages from the shadows above. Josh had to lead the way, his eyes glued to the floor, his shield constantly raised and ready to intercept any sudden projectiles.

  By time they’d cleared that area and killed the smiths, his shoulder was screaming at him. The constant weight of the heavy shield, combined with the earlier impacts, was taking a brutal toll. He could feel his body was done, the edges of his vision blurring slightly. The constant adrenaline was starting to curdle, leaving a bitter, metallic taste in his mouth that water couldn't wash away.

  "How many more?" Carcan asked, her voice trembling slightly as she toyed with a mana potion with shaking fingers.

  "One more major junction," Brett replied, rubbing his temples as he checked his mental map of the floor layout. "I think anyway. It should be the bit that leads directly to the boss room."

  Josh slammed the rim of his shield into the stone floor with a heavy, final thud. The vibration travelled up his numb arm, but he didn't lift it again. He leaned back against the hot obsidian wall, sliding down until he was sitting in the grit.

  "Then we stop here for a bit," Josh rasped, the command coming out as a wheeze. "We take ten. Maybe twenty."

  Bhel looked down at him, frowning. "Here? In the open tunnel?"

  "If I walk into that Hall right now," Josh said, looking up at the dwarf with bloodshot eyes, "I’ll miss a block. My arm is dead, Bhel. And if I miss a block in there, we get overrun."

  Perberos stepped out of the shadows, his expression grim but nodding in agreement. "He is right. From here on out it’s not a skirmish or short fights; it is a gauntlet. Tough spawns, even Elites. If Josh struggles, the line collapses."

  "I’m not arguing," Carcan sighed, slumping down opposite Josh and closing her eyes. "My mana is barely above half and the atmosphere here's playing tricks with my regeneration. I need a moment to cycle it properly."

  "Agreed," Brett said, dropping his pack with a clatter. "We eat. We drink. We wait for the mana to hit full. No point rushing to the boss just to die on the doormat."

  They sat in the oppressive, sulfurous dark, the silence only broken by the sound of chewing rations and the distant, rhythmic thumping of the Foundry’s heart. It wasn't a comfortable rest, the floor was hot and the air was thick but as Josh felt the feeling return to his upper body, he knew it was the only choice that kept them alive.

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