The valley itself held its breath.

  Dawn was still hours away, but the forest around the ridge felt caught in a half-light—branches arching like ribs overhead, air thick with smoke drifting from the camp below. They had bought themselves time with the sabotage, but not much. By the next nightfall, the cultists would either be rebuilding their altars or hunting the shadows for whoever had struck them.

  For the moment, though, there was silence.

  Ren sat a little apart from the others, his back resting against a moss-slick boulder. His left arm—the real one—lay limp against his knee, while the other rested across his lap. He traced the grooves in the alloy with his left hand, fingertips catching on the etched runes along its surface. The arm felt heavier tonight, though not in the way metal weighed. It pulsed differently, alive in a way that echoed his own heartbeat.

  He could still remember the cave. The wolf had come out of nowhere, all fangs and claws, and in that instant, his arm had been torn from him. He’d fallen, helpless, the echo of his own scream swallowed by the howl of the beast. And Ethan—steady, unflinching—had thrown himself into the fight, letting the creature sink its teeth into him instead. Sacrifice. Loss. The hollow ache of that memory lingered long after the blood had dried.

  Now, after the evolution, the arm was an extension of him. His Threads hummed inside the frame like a second heartbeat. Every motion was smoother, quicker to answer him—less machine and more… part of himself. He flexed the fingers, and the mana-synced joints whispered in perfect rhythm. But it wasn’t enough.

  The camp below was too large. The seals were already half-broken. He could feel it in the marrow of his bones: they couldn’t afford “enough.”

  “You’re staring at it like it might bite,” Raven’s voice drifted from the shadows.

  Ren startled, almost letting the arm clatter against the stone. She stood a few steps away, arms folded, staff hooked loosely at her side. The mage-lights had been dimmed to nearly nothing, but her eyes caught what little glow remained.

  “I was just… thinking,” he muttered.

  “You think too loud.”

  She knelt beside him, cool and deliberate, her robes brushing the moss. Without asking, she reached for the arm. Ren hesitated, then let her take it. Raven’s touch was precise, impersonal, like a surgeon’s. She turned the alloy over, traced the engravings with two fingers, then drew a slim knife from her belt.

  “Leo gave you this because he’s reckless. He builds things to see if they’ll work. But he’s not here now, and if you’re carrying this into the fight tomorrow, it needs refinement.”

  Ren blinked. “Refinement?”

  “Half these inscriptions are redundant. They eat mana for no return.” Raven scraped her knife across the edge of a rune, flicking away the residue. “Every time you grip too hard, you’re bleeding energy.”

  He stared, caught between embarrassment and relief. “And you just… know that?”

  “Magic is language,” she said without looking up. “Leo’s script works for sigils, but it’s not exactly peak inscription material. Your Threads are compensating, filling the gaps on instinct. That’s the only reason it hasn’t collapsed already.”

  Ren swallowed. The idea that his power was patching flaws in the design unsettled him. But at the same time, it made sense. His class had always been about weaving—tasting, adjusting, smoothing rough edges until they held together. The arm wasn’t broken; it was just another recipe waiting to be refined.

  He exhaled, forcing a crooked smile. “You wanna put that in plain English?”

  Unauthorized duplication: this narrative has been taken without consent. Report sightings.

  Raven finally glanced up, the corner of her mouth twitching in amusement. “Sure. You’re one bad punch away from frying your own nerves, kid.”

  Ren hesitated, then lifted the arm. “Show me,” he said quietly.

  For the next hour, Raven carved, adjusted, and smoothed. She spoke little, but every so often she handed it back for him to test: close the fist, flex the wrist, channel mana. Each time, the response sharpened. The Threads within him met the threads of alloy without friction, like ingredients blending instead of clashing.

  Ren let his mind drift, memories slipping through like shadows—Ethan’s sacrifice, the hollow ache in the cave, the warmth bleeding from his friend’s body, the helplessness he had felt. Not again. Not Sinclair. He could feel the weight of that promise settle over him, a mantle heavier than any metal or magic. Tomorrow, he would make sure it didn’t come to that.

  By the end, the arm gleamed faintly in the dark. The hum inside it was different now—not just eager, but harmonized.

  Raven wiped her blade clean. “Better.”

  Ren flexed the fingers again, and for the first time since he’d received it, he didn’t feel like he was using the arm. He simply moved.

  “Thank you,” he said, meaning it.

  Raven gave a faint shrug, already standing. “Don’t waste it.”

  When Ren returned to camp, most of the others were half-dozing. Drake sat with his shield resting against his knees, gnawing quietly on a strip of dried meat. The other shield-bearers mirrored him, tired but alert even in rest. Leo scribbled furiously by mage-light until Raven snapped her fingers and extinguished it, leaving him scowling in the dark.

  And Sinclair—he was speaking in low tones to two of the shield-bearers at the perimeter. Ren caught only pieces: shifts of position, fallback signals, instructions spoken without weight but with a precision that made them stick. The man wasn’t loud. He didn’t need to be.

  When Sinclair finally walked back to the fire’s edge, Ren found himself blurting before he could stop: “You’re planning.”

  Sinclair’s gaze slid to him. In the gloom, the commander’s face was unreadable, hair damp with dew, shadows cutting deeper lines across his brow.

  “I always plan,” he said simply.

  “No, I mean—” Ren hesitated. He didn’t want to say it out loud, the thought that had gnawed at him since he saw Sinclair’s silhouette framed against the ridge. “You’re making sure… if it comes to running, everyone else gets out first. It’s obvious.”

  The words hung heavy in the silence. Even Drake looked up, chewing slowing.

  Sinclair didn’t flinch. He crouched near the firepit, though there was no flame, only the faint heat of smoldering embers. “A commander’s weight isn’t just giving orders. It’s being the last shield when the line breaks. That’s not sacrifice—it’s math.”

  Ren felt his jaw tighten. “That doesn’t make it less…”

  “Unfair?” Sinclair’s tone softened, though only slightly. “Perhaps. But fairness doesn’t win wars. Preparation does. You’ll understand that, eventually. Besides, it will never get to that point anyway. We got this, Ren.”

  Ren’s Threads pulsed against his skin, restless, wanting to argue—wanting to reject the cold logic. But Sinclair’s gaze was steady, not cruel, not resigned—just certain. And beneath that certainty, Ren could feel something else: a faint echo of the trust he had once given to Ethan. He would honor it.

  Finally, Sinclair shifted, resting his helm on his knee. “You’ve changed. Your class, your arm, your Threads. I see it. The others do too. That means you’re not just another fighter anymore. It means tomorrow, when the fighting comes, you won’t just survive it. You’ll hold your ground.”

  It was as close to praise as Ren had ever heard from him. Something in his chest eased, though the unease never fully left.

  The night wound down in quiet conversation and the occasional murmur of gear being checked. Ren spent the hours sharpening his knives, running thread-tests through the arm, and forcing himself to eat even though his stomach twisted with nerves. Every time his Threads brushed against the alloy, he felt the echo of past mistakes—Ethan’s sacrifice, the cave, the clawed darkness—and reminded himself: tomorrow, he would protect what mattered.

  No one said it outright, but the truth pressed against all of them. The Seal was not just another raid. It was a wall of bodies and obstacles between them and the real enemy—The Divine. And walls always came down in blood.

  Ren lay awake until the first hints of dawn bled into the trees, the mechanical arm humming faintly against his side. He closed his eyes and let his Threads stretch, feeling each presence in camp, each breath, each heartbeat. Raven’s focus was taut, Drake’s heartbeat a steady war drum, Leo’s spark flickering with barely contained energy, Sinclair’s presence like a shield over them all. His family—strange, broken, fierce.

  Tomorrow, they would move.

  Tomorrow, the plan of approach would become a fight for survival.

  But tonight, they would sleep.