Caleb was transfixed. “This is under my land. The entire flow runs directly beneath the Morgan pastures before it drops into the deep sinkholes near the Rio Grande.”
“And Vale knew it,” Clara said, her voice turning hard as flint. “He didn't want your land for cattle, Caleb. He wanted this cavern. If a man controls this underground river, he can drill vertical shafts from the high plateau, pump the water to his private holding tanks, and starve every ranch from here to the Mexican border. He becomes king of the desert.”
Caleb moved the light along the chamber wall. Suddenly, his breath hitched.
Carved into the soft limestone, protected from rain and wind for nearly two decades, were marks chiseled by a cold chisel.
There was a survey bench-mark—an arrow pointing true north. Below it, carved into the stone with bold, unmistakable strokes, was a declaration:
WE PLIGHTED OUR FAITH TO THE WATER AND THE VALLEY.
LET NO TYRANT CLAIM WHAT GOD GAVE TO ALL.
JULY 14, 1866.
Beneath the inscription were two sets of initials:
N. M.
S. W.
Caleb dropped to his knees, his lantern hand trembling so violently that the shadows danced wildly across the cavern ceiling. “Nathaniel Morgan... and Samuel Whitaker.”
He looked up at Clara, his throat tight with tears he had not shed since he was a boy burying his mother. “They were partners. They found this together.”
“They didn't just find it,” Clara whispered, pointing toward a natural stone niche carved into the wall beside the inscription. “They protected it.”
Inside the niche sat a small, iron-bound cedar box, coated in a fine layer of dry dust.
Caleb reached out with a trembling hand, his fingers brushing the cold metal latch. For eighteen years, his life had been defined by a lie—by the belief that his father had been a solitary, broken man who hoarded dry dirt and died in an accidental fall from a horse. The truth was waiting inside that box, but as Caleb’s fingers closed around the handle, a sound echoed down the narrow entrance tunnel that made the blood freeze in his veins.
It was the metallic, unmistakable scrape of an iron spur striking stone.
Then came a voice, muffled by the tunnel walls, but dripping with smug cruelty.
“Keep moving, boys. The horses are tied down by the willows. The fools went right into the rat-trap.”
Jack Vance had followed them.
Caleb blew out the lantern.
The cavern plunged into an absolute, suffocating blackness, save for the faint, pale glow of distant daylight filtering through the narrow entrance cleft thirty yards away. The roar of the subterranean river filled the chamber, drowning out the softer sounds, but Caleb’s senses were honed to razor-sharpness. He could smell the sulfur of burnt gunpowder, the stench of stale tobacco, and the greasy scent of gun oil drifting in from the passage.
He reached out in the dark, his hand finding Clara’s shoulder. She was already crouching, her breathing silent, her body coiled like a panther. He slipped the cedar box from the niche, tucking it under his left arm, and pressed his lips close to her ear.
“Two of them,” he whispered, barely audible beneath the rush of the water. “Vance and another man. They’re silhouetted against the light. We have one advantage—they don't know the drop-off is here.”
Clara reached into her satchel and pulled out her father’s heavy silver medallion. “Take the left bench. I will take the entrance.”
Before he could protest, she was gone, moving across the damp stone with the eerie, supernatural silence of her Apache ancestors.
A voice cut through the cavern, flat and echoed. “Morgan! We know you’re in here! Vale said if we bring back your carcass and the squaw’s hair, there’s a hundred-dollar bonus in gold! Come on out and maybe we’ll make it quick!”
A gunshot shattered the darkness.
The muzzle flash of a revolver illuminated the cavern for a fraction of a second, casting giant, demonic shadows against the crystalline walls. The lead slug ricocheted off a limestone spur near Caleb’s head with a vicious shriek, showering his neck with stone splinters.
Caleb didn't fire his rifle; the muzzle flash would give away his position on the narrow ledge. Instead, he waited until the two gunmen advanced three paces into the chamber, their silhouettes framed against the faint light from the entrance.
From the high rocks above the passage, a heavy stone dropped.
It struck the second gunman square across the shoulder with a sickening thud. The man cried out, his revolver discharging into the dirt as he stumbled sideways toward the chasm. Vance swore violently, pivoting to fire toward the ceiling, but Clara dropped from the limestone ledge like a falling falcon.
She drove the heavy iron fencing pliers into the side of Vance’s knee.
The gunman let out a shrill scream of agony, his leg buckling beneath him. His revolver flew from his hand, clattering down the rocky slope and plunging into the roaring abyss below.
Caleb lunged forward, closing the distance in three massive strides. He brought the butt of his Winchester down with crushing force against the back of the second gunman’s skull, dropping him instantly into the wet gravel. He spun, leveling the rifle barrel straight at Jack Vance’s forehead.
Vance was on his back, clutching his shattered knee, his face twisted in a mask of sweaty, snarling terror.
“Move a finger,” Caleb said, his voice dropping into a register colder than the river beneath them, “and I’ll blow your brains across these rocks to feed the blind fish.”
Clara retrieved the lantern, struck a match, and touched it to the wick. The yellow light revealed Vance pinned beneath Caleb’s rifle, while his companion lay face-down in the dirt, unconscious.
“Who sent you?” Caleb demanded.