* * * * *
The descent into the salt mine consumed nearly an hour aboard a groaning, iron-caged hoist that shuddered violently against the timbered walls of the vertical shaft. As the drop cable unspooled into the dark, the stifling heat of the Rauschite surface surrendered to a dead, dry chill that tasted of ancient mineral oceans. Two thousand feet beneath the sunlit valleys, the air grew so dense with pulverized salt that every breath left a crusted rind upon the tongue and set the eyes to watering.
When the hoist finally slammed onto its wooden bumpers, the lanterns held by Dresden’s accompanying guards carved pale yellow cones through a realm of stark, crystalline white.
They stood in a gargantuan subterranean hall, unearthing a massive salt dome that stretched for miles beneath the valley floor. Vast pillars of halite—translucent, white, and veins of deep arterial pink—supported a vaulted ceiling so high that the darkness swallowed it whole. Towering halite crystal formations, sharp as glass and as wide as ancient redwoods, erupted from the floor at jagged angles, catching the lantern light and fracturing it into a dazzling web of geometric spears.
“Cattledung,” Lyn whispered, her voice deadened instantly by the acoustic absorbency of the salt walls. She pulled her wool coat tighter and sneezed into her elbow. “It’s like being inside a frozen gut.”
“Watch your step,” Marlby warned, his dog legs clanking with a hollow, metallic ring against the slick salt floor. The iron joints groaned under the salt dust, but he pressed on, using a brass-tipped cane for balance. “One slip on these crystal spurs and you’ll leave half your hide behind.”
Bigby paid the warning no mind. He was already several paces ahead, moving like a man pulled by an invisible leash. In his hand, the alchemist’s key wasn't merely warm—it was humming at a pitch so high it made his teeth ache. A pale, copper glow pulsed beneath the metal’s burnished skin, lighting the gnome’s face in rhythmic flashes.
“It’s here,” Bigby said, his voice taut with anticipation. “The node is right under us.”
Poppy walked beside him, her steps silent and unhurried. Her eyes, wide and unnaturally dark in the cavern’s glare, reflected the rod’s copper light. “The salt remembers,” she murmured softly, her fingers tracing the edge of a massive, hexagonal crystal pillar as they passed. “It held the water before the mountains rose. It holds the weight now.”
“Poppy?” Bigby paused, casting a concerned glance at her.
“I’m clear, Bigby,” she said, though her tone remained eerie in its perfection. “The pressure here... it calms the noise. Proceed, Alchemist.”
The party rounded a colossal, leaning spire of translucent pink halite and emerged into a natural circular amphitheater at the heart of the dome. In the center of the grotto, two gargantuan salt crystals—one hanging down from the unreachable roof like an inverted mountain, the other rising from the bedrock—nearly met in the middle. The gap between their sharp, pyramidal tips was no wider than the span of a man’s hand.
“There,” Bigby breathed.
He stepped onto the raised salt dais at the center of the room. The air around the central formation vibrated with a static charge that made the hair on their arms stand up on end.
“Biggs, you sure about this?” Marlby called out, staying near the edge of the chamber with Lyn, his hand resting cautiously on his hatchet. “We’re two thousand feet under the Rauschite faith. If this place caves, they won't even need to dig our graves.”
“It won't cave,” Bigby said, though sweat beaded on his forehead despite the cold. He held up the bronzed rod. The key was almost too hot to hold now, radiant with an intense, golden-orange light that cast long, dancing shadows across the crystal walls. “The charge is full. It needs to discharge to balance with the node.”
Bigby climbed the stepped salt ledge, reached up, and carefully inserted the bronzed rod horizontally into the narrow gap between the twin crystal spires.
The instant the metal touched both points of salt, the key’s light flared into a blinding, white-hot flash.
A sound like a shattering bell echoed through the subterranean expanse, followed immediately by a deep, low frequency THUM.
The energy stored within the rod poured out in a visible, rippling wave of violet-and-copper force. The light raced through the crystalline lattice of the twin spires, branching out into the floor, the walls, and the ceiling like living, luminous roots.
Then, the earth ground its teeth.
“Hold fast!” Lyn shouted, grabbing Marlby’s arm as the floor lurked beneath them.
With a series of deafening, crystalline cracks—like thousands of glass sheets snapping at once—the entire cavern began to rearrange itself. The massive salt formations didn't fracture or collapse; instead, they began to slide and rotate along smooth, perfectly geometric planes.
Huge hexagonal pillars turned in place like massive stone dials. The floor beneath their feet shifted in concentric rings, the inner circle rotating clockwise while the outer ring spun counter-clockwise. High above, the ceiling’s faceted vault slid along hidden, interlocking seams, altering the room's geometry in a smooth, mechanical choreography.
The sound was immense—a roar of grinding mineral and compressed air—yet entirely controlled. It was the movement of a titanically complex lock, buried deep in the mantle of the world, responding to its key.
As quickly as it had begun, the movement ground to a halt with a heavy, satisfying CLACK that reverberated through the soles of their boots.
Silence returned to the salt cavern, heavy and absolute.
The bronzed rod, now completely drained of its light and cool to the touch, clattered against the salt floor as the gap between the spires widened by several inches.
Bigby stood frozen on the dais, panting, his eyes wide as he looked around. The cavern was transformed. The jagged, chaotic array of crystal spires had aligned into neat, radial avenues pointing outward from the central chamber, revealing a dark, perfectly square passageway cut into the far wall that had previously been hidden behind thousands of tons of solid salt.
He knelt and picked up the key. It felt light, empty, and dormant once more.
“Brand me a Brelonite…” Bigby whispered.
Lyn let out a long breath, her hands still trembling as she uncurled them from Marlby’s coat. “Well, Biggs … you certainly know how to turn a room around.”
Poppy stepped forward onto the newly aligned floor, looking down the dark, revealed passageway. She didn't look frightened or disoriented. A quiet, knowing smile touched her lips as she turned back to Bigby.
“One step closer,” Poppy said softly. “The Machine turns.”
