Chapter 1

The first thing Kael noticed was the stench. Not the rot of flesh or the acrid bite of gunpowder that clung to the war-ravaged lands he usually prowled, but something older, sharper—a bitter tang of marrow and dust that scraped at the back of his throat. He reined in his mule, Grim, atop a jagged ridge, the beast snorting uneasily as the wind howled through the endless white below. Before them stretched the Dead Expanse, a desert not of sand but of bone, the shattered remains of some ancient leviathan whose ribs pierced the sky like cathedral spires. A forbidden path, whispered about in smuggler dens as a shortcut through the heart of a continent torn apart by war. A path Kael had sworn never to take. Until now.

He adjusted the scarf over his nose and mouth, squinting against the glare of a merciless sun. Beneath the cloth, his jaw clenched. The pack strapped to Grim’s flank held vials of forbidden medicine—serum distilled from rare desert blooms, worth more than gold to the rebel encampments on the far side of the Expanse. The war had turned healers into outlaws, and Kael, with his knack for slipping past blockades and bribes, had become their lifeline. But the usual routes were crawling with patrols now, loyalist soldiers sniffing out contraband with dogs and steel. The Dead Expanse was his only chance to reach the rebels before their wounded succumbed. If the stories were true, though, this shortcut came with its own breed of death.

Kael’s gloved hand rested on the hilt of the curved dagger at his hip, more out of habit than comfort. He’d seen twenty-nine winters, most of them spent dodging bullets and betrayal, and his lean frame bore the scars to prove it—a jagged line across his left cheek, a burn on his forearm from a botched dynamite job. His eyes, a stormy gray, scanned the horizon for movement, though he knew nothing living thrived here. The Expanse was a graveyard, a monument to something the world had forgotten how to kill. Legends said the leviathan’s spirit still lingered, jealous of trespassers, whispering curses into the wind. Kael didn’t believe in ghosts. He believed in ambushes, in faulty maps, in the weight of a bad decision. And this, he suspected, might be his worst yet.

Grim pawed at the ground, tossing his head as if sensing something Kael couldn’t. “Easy, old friend,” he muttered, patting the mule’s flank. “We’ve faced worse than a pile of old bones.” But the words felt hollow. The descent into the Expanse loomed before them, a steep trail of pulverized ivory that shimmered like crushed pearls. Each step would be a gamble, the ground brittle and treacherous. Kael dismounted, leading Grim by the reins as they began their descent, boots crunching against fragments that might have once been teeth or vertebrae. The air grew heavier, the silence oppressive, broken only by the skitter of loose shards tumbling down the slope.

At the base of the ridge, the true scale of the Expanse unfurled. Ribcages the size of warships arched overhead, their shadows casting jagged patterns across a sea of skeletal debris. Femurs thicker than tree trunks lay half-buried, and smaller bones—phalanges, perhaps, or the spines of lesser creatures caught in the leviathan’s collapse—crunched underfoot. Kael’s stomach twisted as he spotted something glinting among the white: a rusted sword, its hilt wrapped in tattered leather, half-swallowed by the dust. A reminder that others had tried this path. And failed.

He pressed on, the sun climbing higher, its heat turning the bone dust into a fine, choking haze. Sweat beaded on his brow, stinging the scar on his cheek. Every so often, he glanced at the pack on Grim’s back, the faint clink of glass vials a reminder of why he couldn’t turn back. The rebels needed this medicine—children with fevers that wouldn’t break, soldiers with wounds festering from shrapnel. Kael had no love for their cause, nor for the loyalists they fought against. War was just a machine that chewed up men and spat out profit for men like him. But he’d made a promise to deliver, and if there was one thing Kael valued more than coin, it was his word.

Hours bled into eternity as they trudged through the Expanse. The landscape shifted subtly, the bones growing denser, sharper, as if warning him to turn back. Grim’s ears flicked nervously, and Kael’s hand hovered near his dagger more often now. It wasn’t the silence that unnerved him—it was the sense of being watched. A prickle at the nape of his neck, a whisper of movement just beyond sight. He told himself it was exhaustion, the heat playing tricks on his mind. But then he saw it: a footprint, pressed into the dust ahead. Not his own, not Grim’s. Human, fresh, the edges still crisp despite the wind.

Kael froze, heart hammering against his ribs. He crouched, tracing the print with a gloved finger. It was barefoot, the toes splayed unnaturally wide, as if whoever—or whatever—had made it walked with a gait not quite human. His gaze darted around, taking in the endless white, the towering ribs that could hide a dozen men. Or something worse. Smugglers weren’t the only ones who knew of the Expanse. Bandits, deserters, scavengers—all manner of desperate souls might lurk here, drawn by the promise of forgotten treasures or the flesh of fools like him. He drew his dagger, the blade catching the sunlight with a cold gleam, and motioned for Grim to stay close.

The trail of prints led deeper into the Expanse, weaving between massive vertebrae that formed a natural tunnel. Kael’s better judgment screamed to turn back, to find another way, but curiosity—and the ticking clock of his delivery—pushed him forward. If someone else was here, he needed to know if they were a threat. He crept along the prints, each step deliberate, the crunch of bone beneath his boots sounding louder than cannon fire in the stillness. The tunnel of vertebrae loomed darker as the sun dipped lower, shadows stretching like claws across the ground.

Then he heard it—a low, rhythmic sound, almost like breathing, echoing from the far end of the tunnel. Not wind, not his imagination. Something alive. Kael’s grip tightened on his dagger, his pulse a war drum in his ears. The prints stopped abruptly at a jagged opening in the bone wall, a cavern of sorts, its interior swallowed by darkness. The breathing grew louder, interspersed with a faint, wet rasp, like lips smacking over a meal. Every instinct told him to flee, to drag Grim back to the ridge and damn the rebels to their fate. But he’d come too far to turn tail now. Whatever lay ahead, he’d face it head-on.

Steeling himself, Kael stepped closer to the cavern’s edge, the darkness within seeming to pulse with a life of its own. And as he raised his dagger, ready to strike at whatever nightmare awaited, a pair of eyes—yellow, slitted, and impossibly ancient—flared to life in the black, locking onto his own.