Inside the citadel of Shatterdeep, obsidian paved the floor of the war hall, veined with dull iron that pulsed like a heart, rolling a steady, stifling heat through the chamber. Braziers hung from chains high above, their flames guttering through skull-shaped sconces. No banners softened the walls; Shatterdeep did not hang cloth. It hung prizes, and not one of them had been carved by demon hands.

  An advisor knelt where the iron veins crossed, his wiry frame stretching in the flickering firelight. He remained perpetually hunched, his spine curved like a drawn bow as if leaning in to catch the whispers of the stone itself. Yellowed skin hugged his ribs, catching the glow of the throbbing floor.

  His horns were long and needle-thin, arching back from his brow like the legs of a predatory insect. They were tipped in polished silver that caught the firelight, and the intricate runes etched along their length flashed with a cold light as he bowed his head. A bone chime dangled from his claw, trophies of Sangrathi taken long ago, and his fingers never stopped moving, lightly testing the weight of the shards.

  "We sieged Nethervale three centuries ago," he rasped, his voice dry. "Since then? Silence. We thought they had all burned with it." He fingered the yellowed chimes. "But Sangrathi are like ash-fires. Buried deep, waiting for a breath of air to reignite."

  Upon a dais, the Sovereign of the Sands stood over a slab of hammered iron engraved with the landscape of the Infernal Wastes. He was a magma colored expanse of bronze-scaled hide, his presence a suffocating weight of brimstone that seemed to shrink the vaulted ceiling. His shoulders were wide as a ridge, and a series of black horns crowned his skull, the thick, battered crown of a conqueror who had gored his way to the top.

  Across his chest, the scales were thick and uneven, scarred by the white lines of failed blades and claws alike. Clamped around his thick neck was a heavy collar of raw basalt vein-shot magnetite; it hummed with a low, desert heat, spilling an endless stream of fine, dark silt from its links. The sand poured over his shoulders in a shifting cape of grit that never hit the floor, instead swirling and dissipating into a haze of dust at his heels.

  As he shifted, his heavy claws clicked against the floor, a sound that resonated like a slow, thudding heartbeat.

  His gaze remained fixed on the map. "You claimed they all burned," the Sovereign murmured, his voice deep as fault lines splitting. "How could they emerge after three centuries and slip under our noses?"

  "They are a hardy race, Sovereign. To persist for so long…almost impressive-"

  Crack.

  The sound rang through the chamber like a whip; a backhand left the advisor reeling. Black blood streaked Malvaghar's jaw, the copper heat of it filling his mouth.

  "It is not impressive," Dagrimor growled, finally turning toward his subordinate. "It is intolerable. We sit on a throne that was never ours. Shatterdeep tolerates us only because its masters are dead. If even one Sangrathi breathes... Shatterdeep will remember. And this citadel will answer to them."

  Malvaghar forced his breath to remain shallow, counting the heartbeats of the floor until the world stopped spinning. He wiped the spray from his lip with a trembling claw and pulled his features into a thin smile.

  "Understood, Sovereign," Malvaghar whispered, his head remaining bowed to hide the cold focus igniting in his eyes.

  Dagrimor's gaze remained fixed on the map. High in the vault, orange embers pulsed within the braziers. "We are bound to these sands, Malvaghar. Do not forget that."

  He clenched his fists.

  "I did not break this citadel just to hand it back to ghosts. Crush them before they reach the gates. Send out hunters."

  "Who would you prefer, Sovereign?"

  "Send the breaker and the wind," Dagrimor said. "Widen the sweep. If the trail breaks, make one. I want certainty."

  "As you command." Malvaghar rose, the chain of bones slipping through his claws with a whisper.

  He turned to leave, but Dagrimor's voice caught him at the threshold.

  "Find them," the Sovereign rumbled, sinking back onto his stolen throne. "Before the walls start listening."

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  Outside, Shatterdeep's yard spread wide, a desert of ash, hemmed in by thick walls. He headed for the lower rings.

  The crack and scrape of steel on bone reached him before he even cleared the ridge of the training pits. A sparring partner lunged, blade aimed at the throat. The Iron-Born caught it on his forearm, sparks flying off bone plating thick as natural gauntlets, and backhanded the younger demon without breaking his stance.

  Malvaghar stepped up to the ring, taking in the mountain of slate-gray muscle. Silver scars mapped every place a blade had failed. Instead of horns, yellowed tusks erupted from his jaw. They curved upward like jagged ivory hooks, notched and chipped from centuries of impact, adding to the living armor that made the demon he was toying with fail to find a single gap in his defense.

  "Thra-uk!" the advisor called out, stepping up to the ring.

  He turned, yellow eyes narrowing as he saw the Sovereign's advisor. Thra-uk didn't drop his stance, his arms still slick with the dark blood of his sparring partner. "Speak, Malvaghar. Why stop the sport?"

  "Because the Sovereign has found a better one," Malvaghar said, holding up a glass bell of iron-wine. "A scent has returned to the Wastes. Sangrathi."

  Thra-uk's predatory grin was slow and heavy. "Ghosts in the ash. I thought we broke them all?"

  "They've been hiding quite well, it seems. Where is Ragith-Kar?"

  Thra-uk slammed his forearms together. The impact produced a harsh, grinding screech of calcium, sending a spray of sparks into the sweltering air.

  For a heartbeat, the yard held still. Then, the ash at Thra-uk's feet shuddered. A gust twisted it into a spiral that slammed into the ground. Within the grit, a pair of orange eyes snapped open, two sparks in the red dust. A wicked grin followed, littered with fangs.

  Ragith-kar stepped out of the storm.

  His form settled into tattered fabric and wiry flesh, skin rough as sandstone, his movements as silent as shifting dunes. Horns swept back from his brow like shards of wind-carved glass, translucent and serrated, whistling as the air passed over them. He shook the remaining sand from his cloak, adjusting the curved crystalline blades that hung from his hips.

  "Orders," Malvaghar said, his voice smoothing into smoke now that he was away from the throne. He handed over a glass bell sloshing with oily black liquid.

  Ragith-kar took it with surprise. "Iron-wine?"

  "Because you left the job half-done three centuries ago," Malvaghar spat, the bone chimes at his belt rattling with his tremor. He stepped closer, his yellowed skin tight over his ribs. "A scent has returned to the Cinder Fields. Sangrathi blood, fresh and waking!" He pointed a sharp, shaking claw at Ragith-kar. "I thought we crushed them all at Nethervale! How did we miss them? You were both there!"

  Ragith-Kar's glass-like horns whistled with a sudden, dangerous pitch. "You claimed you cleared the lower vaults, Malvaghar. You said the spires were empty. Were you too busy counting trophies to count the heartbeats beneath the stone?" He leaned in, his orange eyes shimmering like embers in the dust. "If you failed to count the bodies in the ash, that is a rot you carry alone."

  "Do not test me!" Malvaghar hissed, his voice cracking like dry stone. "You will hunt them down and bring me their heads, or I will ensure the Sovereign's shadow is the last thing you ever see!"

  Thra-uk stepped forward, his massive, tusked frame casting a mountain of a shadow over the wiry advisor. He looked down, his presence a heavy, suffocating weight. "Or else what, Malvaghar?" the Iron-Born rumbled.

  Ragith-kar chuckled, a dry, abrasive sound that seemed to come from the wind itself. "Your influence ends at the doors of the court, advisor. Best watch your tone out here in the sand, or the Wastes will swallow you up before we even find the trail."

  Thra-uk stepped into the advisor's personal space. He extended a single, tree-trunk finger, pressing the blunt tip into the center of Malvaghar's chest. With a casual, effortless shove, he sent the wiry demon stumbling back several paces.

  "Move," Thra-uk rumbled, his yellow eyes already dismissing the advisor as a threat.

  Ragith-kar's gaze slid toward the horizon. High in the bruise-colored sky, a wall of ash was rising like a tide, ready to roll over the black walls of Shatterdeep. The air began to shiver with the coming gale, smelling of sulfur and baked earth.

  "The winds are with us," the Sandsworn whispered, his glass-like horns beginning to whistle with a sharp, expectant pitch. "A storm is coming, brother."

  Thra-uk grunted, his heavy claws digging into the grit as he braced himself against the first gust of the scouring winds.

  "You are not to play with them!" Malvaghar shouted over the rising winds.

  Thra-uk bared his fangs into a wicked smile. "As you say."

  The first gust hit. The storm's spine arched over the yard, a wall of grit. Ragith-kar's skin loosened. In a blink, his edges frayed. Horns and limbs unraveled into streams of dark sand, blending with the gale. He became the wind.

  Thra-uk stood like a boulder against the tide, his heavy claws digging into the sand. He grunted, a sound of annoyance.

  "Do it," the Iron-Born rumbled, bracing himself.

  The swirling cloud that was Ragith-kar circled the massive brute. A voice scraped from the wind, dry and hollow. "Hold your breath, brother."

  The sand-cloud collapsed inward. It ground against Thra-uk. The wind howled as it tore at the Iron-Born's rough skin, the sound like a thousand files working on a single sheet of metal. Sparks of friction lit the storm. Thra-uk crumbled, his sheer mass fighting the change until Ragith-kar's will finally forced him into the slipstream.

  The yard was empty. Footfalls erased, and voices gone. The ripple of the dissolved demons raced toward the west.

  Malvaghar stood until the storm swallowed them completely, the yard returning to its sweltering, stagnant heat. He fingered the chime at his belt, a fragment of a Sangrathi rib he'd taken centuries ago. It was cold, but for a fleeting second, he swore it thrummed against his palm.