PART 4 — THE MAN WAITING INSIDE THE ABANDONED MILL

The lantern inside the abandoned mill was still burning when Caleb and Eliza arrived.

Neither spoke as they approached the weather-beaten building. The wind moved through the broken boards, making the old structure groan like something alive.

Caleb held the brᴀss key from the hidden compartment beneath their bed.

Eliza clutched her father’s letter.

“Whatever happens,” Caleb whispered, “you stay close to me.”

She looked at him.

“I didn’t travel two thousand miles to let you face this alone.”

He gave her a small, nervous smile.

Then the mill door opened.

An elderly man stepped into the lantern light.

His hair was almost entirely white, and one side of his face was marked by an old scar. He wore a faded coat and leaned heavily on a wooden cane.

“Samuel’s boy,” he said.

Caleb stopped.

“You knew my father?”

The stranger nodded.

“My name is Walter Griggs. I worked at this mill when your father was alive. I’ve been waiting for someone to come looking for that key.”

Eliza stepped forward.

“Did you know my father too? Thomas Hart?”

Walter’s expression changed.

“I knew him better than most.”

He looked at her for a long moment.

“Your father was a good man, Miss Hart. He tried to stop something terrible from happening here.”

“Then tell us what happened.”

Walter glanced toward the dark road.

“Not outside. Come in.”

Inside, the mill smelled of dust, old timber and damp earth. A single lantern illuminated a workbench covered with papers.

Walter led them to a narrow staircase.

“Your father and Samuel Mercer discovered that the underground reservoir beneath these properties was much larger than anyone imagined,” he explained. “It supplied water to several homesteads. They agreed that no single rancher should ever control it.”

Caleb frowned.

“Then why did the Rors try to take it?”

“Because Silus’s father believed he could make a fortune selling the water rights.”

Walter placed an old map on the workbench.

“The original agreement gave each family access to the reservoir. The Mercer family was entrusted with protecting the main spring, but the water was never meant to belong to one man.”

Eliza leaned over the map.

“And my father helped write it?”

“He did more than that.”

Walter reached into a wooden drawer and removed a small envelope.

“He was the one who discovered the Rors had secretly altered the agreement.”

Eliza’s fingers trembled as she opened it.

Inside was a pH๏τograph of her father standing beside Samuel Mercer.

On the back were four handwritten words:

Two families. One promise.

“Why did nobody tell me?” she whispered.

Walter looked toward the window.

“Because your father believed the truth would put you in danger.”

Caleb’s expression hardened.

“What happened the night he died?”

Walter took a long breath.

“Arthur Vain came to this mill with Silus Ror. They wanted Thomas Hart to surrender the final page of the agreement. Your father refused.”

Eliza closed her eyes.

“So Arthur was there.”

“Yes. And he left with the belief that the final page had been destroyed.”

Caleb looked at the brᴀss key in his hand.

“Then what does this key open?”

Walter walked to an enormous wooden support beam near the back wall.

“Your father and mine built a hiding place.”

He pointed to a small iron lock concealed beneath a loose board.

Caleb inserted the key.

It turned.

A narrow compartment opened.

Inside lay a leather folder, several old account books and a sealed document bearing the signatures of the original homesteaders.

Eliza carefully unfolded the document.

The final page.

The missing page.

For several seconds, nobody moved.

Then Walter spoke.

“Now you understand why Silus Ror wants your land so badly.”

Caleb studied the document.

“But if this proves the agreement, why hasn’t anyone used it before?”

Walter’s face darkened.

“Because the agreement alone isn’t enough. The county registry was altered. We need someone who can prove the original document is genuine.”

“Mr. Hensley,” Eliza said immediately.

Walter nodded.

“He can identify the original county seal. But there is another problem.”

“What problem?” Caleb asked.

Walter looked directly at him.

“Silus Ror knows you’ve come here.”

A horse whinnied outside.

Then another.

Walter quickly extinguished the lantern.

Through a crack in the boards, Caleb saw two carriages approaching the mill.

One belonged to Silus Ror.

The other carried Arthur Vain.

Eliza felt Caleb take her hand.

A moment later, Arthur’s voice echoed through the building.

“Come out, Eliza. We have unfinished business.”

Caleb stepped in front of her.

Arthur laughed.

“You still don’t understand, Mercer. This was never about a little spring.”

He paused.

“It’s about the millions buried beneath it.”

And then he said something that made Walter turn pale.

“Bring me the ledger, or I’ll tell everyone what Samuel Mercer did to his own son.”

Caleb stared at the old man.

“What is he talking about?”

Walter said nothing.

But the expression on his face told Caleb that the greatest secret had not yet been revealed.