Benjamin arrived two days later.
He drove a faded silver sedan and carried an old leather briefcase.
Naomi met him on the porch.
He was thin, with white hair, round glasses, and slightly unsteady hands.
But his eyes were sharp.
When he saw the farmhouse, his expression softened.
"Looks just like it did."
Naomi smiled.
"You knew my grandmother well?"
He nodded.
"Better than most people knew."
For a moment, he looked toward the barn.
Then toward the distant pond.
His smile disappeared.
They sat at the kitchen table.
Naomi showed him the measurements.
He studied every page.
The dates.
The reference points.
The rainfall conditions.
And the gradual widening of the shoreline.
Then he looked at the photographs of the cracked bank.
His face became serious.
"These measurements are good."
Naomi felt a small wave of relief.
"Thank you."
Benjamin turned another page.
Then asked, "You worked in water systems?"
She nodded.
"Municipal data analysis. Ten years."
He smiled faintly.
"Ruthie would've loved that."
Naomi looked surprised.
"Why?"
The older man leaned back.
"Because she used to take measurements just like these."
He opened his briefcase.
Inside was a yellowed photograph showing a young woman standing beside the pond with a measuring staff.
The woman wore a plain cotton dress and heavy work boots.
Her hair was tied beneath a scarf.
Naomi recognized her immediately.
Ruthie.
Beside her stood a younger Benjamin Mercer.
Behind them was a concrete structure with a large black steel cover.
Naomi stared.
For a moment, she couldn't speak.
Then she pointed toward the cover.
"That's it."
Benjamin nodded slowly.
"The southern relief gate."
Naomi looked toward him.
"What does it do?"
He rested his hands on the table.
For several seconds, he seemed to consider where to begin.
Then he said, "It was never supposed to rise out of that pond again."
Benjamin explained the original Crescent Branch system.
Decades earlier, engineers discovered that the lowland beneath several farms was connected to a complex network of groundwater channels moving through fractured limestone.
Water entered the area through springs and underground passages.
During wet seasons, pressure could build.
In dry seasons, certain flows diminished or changed direction.
The county constructed relief structures to manage some of those movements and reduce localized flooding.
The Vance pond became part of that system.