The storm reached its peak sometime during the night.
William never saw it happen directly. The deeper chamber of the ruin shielded him from the worst of the wind and sand, but the structure could not hide the raw power raging above the desert.
The stone trembled constantly.
Not violently enough to collapse the deeper levels, but enough that the vibrations never fully stopped. The sensation traveled through the pillars and across the floor in slow pulses that reminded William of distant thunder rolling through the earth itself.
Each pulse was followed by lightning.
The strikes came faster now. Even without seeing them directly, he could feel their impact through the glowing crystal veins that ran across the chamber. Whenever a bolt struck the desert outside, the veins flared brighter, flooding the chamber with sharp blue light before fading again.
The buried structure was absorbing the storm's energy.
Or perhaps channeling it.
William sat near one of the massive pillars, watching the pattern repeat.
Flash.
Pulse.
Silence.
Then again.
The rhythm continued for what felt like hours.
At some point he stood and began exploring the chamber more carefully.
Now that the immediate danger had passed, curiosity pushed at him harder than caution. The vast room was clearly only a small part of the buried structure, and the glowing crystal channels suggested the place had once been part of a much larger system.
He walked slowly along the outer edge of the chamber.
The floor was carved with precise geometric lines that formed enormous circular patterns around the central platform. From above, the design might have resembled a massive wheel or starburst, its arms spreading outward between the towering pillars.
Many of the lines had been damaged when the city collapsed, but enough remained to suggest the original design had been extremely complex.
The crystal veins followed those patterns exactly.
Whenever lightning struck outside, energy rushed through the channels like water flowing through ancient pipes.
William knelt beside one of the glowing seams and examined it closely.
The crystal was not simply embedded in the stone.
It had been grown into it.
Thin branches of blue mineral extended outward from the main veins and disappeared into the carved channels beneath the floor. The placement was too precise to be natural.
Someone had engineered this.
The realization settled heavily in his mind.
This buried city had not simply been built.
It had been designed around the blue energy itself.
Another bolt of lightning struck above the ruin.
The chamber flared with brilliant light.
This time the reaction was stronger.
The crystal veins blazed like rivers of fire, illuminating the carved symbols across every pillar. For a brief instant the entire chamber looked alive, the patterns across the stone forming a vast glowing network.
William stepped back instinctively.
The platform at the center of the room pulsed again.
A low vibration spread across the floor as the energy flowed through the ancient system. The light held for several seconds longer than before before finally fading back into the stone.
William stared at the platform.
If the storm had been stronger… that system might have fully activated.
The thought made him uneasy.
He turned his attention toward one of the darker corridors branching from the chamber.
The passage sloped downward even further than the one he had entered through. Sand had partially filled the entrance, but enough space remained to suggest that the deeper levels of the structure might still exist beneath the buried city.
William considered exploring it.
Then the ground moved.
The tremor hit without warning.
The chamber shuddered violently as a massive vibration rolled through the buried structure. The pillars groaned under the sudden strain and several cracks raced across the ceiling far above.
William braced himself against one of the columns as the entire ruin shook.
Outside, something enormous had happened.
Even from deep beneath the desert, the force of it was obvious. The vibration was far stronger than any of the earlier thunder strikes, strong enough that dust and fragments of stone rained down across the chamber floor.
The tremor lasted several seconds.
Then it passed.
William remained still for a moment, listening carefully.
The storm still raged above the ruin, but something about it had changed.
The lightning strikes were less frequent now.
The pulses of energy through the crystal veins had slowed.
Whatever had caused the massive tremor had also shifted the storm's rhythm.
William stepped back toward the corridor leading upward.
The humming vibration in the stone had softened slightly.
Outside, the thunder sounded more distant.
The storm was beginning to move on.
Not quickly.
The massive system of clouds would likely continue sweeping across the desert for days, but the worst of its energy seemed to have passed over the buried city.
William walked back toward the entrance corridor and stopped at the edge of the chamber.
The crystal veins still glowed faintly along the walls.
The dagger at his belt pulsed softly in response, its runes reflecting the fading energy flowing through the ancient structure.
He glanced once more at the massive chamber behind him.
The place had survived the storm.
For now.
But if the tremor he had felt was any indication, the desert above had not escaped so easily.
When the storm finally passed…
The world outside the ruin would not be the same.
And somewhere beneath the dunes, far deeper than he had yet explored, the rest of the buried city waited.