For several seconds, she couldn't speak.
Then she whispered, "I'm sorry."
He frowned.
"For what?"
"For bringing them here."
Caleb closed his eyes.
His voice became low.
"Clara, you didn't order those men to ride up my mountain."
She shook her head.
"You don't understand."
He drew back enough to look at her.
"Then help me."
Her lips trembled.
For a long moment, she seemed to be fighting a battle with herself.
Finally, she whispered, "My father was a surveyor."
Caleb nodded slowly.
"I know you said he worked with maps."
She swallowed.
"He discovered something before he died."
Caleb waited.
She looked toward the pantry door.
Then back at him.
"Something Gideon Voss was willing to kill for."
Three months earlier, Clara Whitmore had stepped off the morning stagecoach in Willow Creek with one traveling case, forty-three dollars, and a letter of recommendation she had written and rewritten until she could no longer bear to look at it.
It was late October of 1887.
The town stood along a narrow valley beneath the mountains, a scattering of wooden buildings arranged around a dusty main street.
There was a general store, a livery stable, a blacksmith's forge, a small hotel, a schoolhouse, and a church whose bell could be heard across the lower pastures when the wind was right.
The people of Willow Creek knew one another's business almost as thoroughly as they knew their own.
Strangers attracted attention.
Unmarried women traveling alone attracted more.
Clara understood that before she stepped down from the coach.
She was twenty-seven years old, beautiful in a way she had long since learned could be both an advantage and a burden, with clear blue-gray eyes, fair skin, and extraordinarily thick brown hair that seemed determined to escape every pin she used.
Her clothes were respectable but worn.
The traveling dress she wore had been mended twice.
Her boots needed new soles.
And the small bag containing her belongings was almost embarrassingly light.
She had left Chicago two weeks earlier.
Before that, she'd spent most of her life moving between railway towns with her father, an engineer and surveyor named Samuel Whitmore.
Samuel was a careful man.
Patient.
Exacting.
And almost incapable of leaving a question unanswered.
He believed that a surveyor's responsibility went beyond placing stakes in the ground.
People built homes according to those measurements.
Farmers borrowed money against the land described in deeds.
Communities planned roads, canals, and bridges around surveyed boundaries.
A mistake could affect hundreds of families.
A deliberate falsification could ruin them.
Samuel had taught Clara those principles from childhood.
Her mother died when she was twelve.
Afterward, Clara accompanied her father on many of his travels, living in rented rooms and boardinghouses while he worked.
She learned to read maps.
Copy field notes.
Organize survey records.
Use basic instruments under his supervision.
And recognize when a boundary description didn't match the landscape it supposedly represented.
Her father encouraged her curiosity.
When other men laughed at the idea of a young woman understanding surveying, Samuel simply handed her another page of calculations.
"Check this."
She would study the figures.
Sometimes find an error.
Sometimes make one herself.
Either way, he treated her attention as something valuable.
"You have a good eye," he told her.
Clara loved those evenings.
The two of them sitting beside a lamp.
Maps spread across a table.
A kettle on the stove.
Samuel describing rivers, elevations, and distances while she copied his notes in careful handwriting.
He was not a wealthy man.
But he gave her an education few young women in her circumstances received.
By twenty-five, she could read complicated survey descriptions more accurately than many clerks employed by land offices.
By twenty-six, she had begun helping her father compare private railroad surveys with older territorial records.