Measured the depth of his shallow monitoring wells when it was safe to do so.
Mapped old drainage lines.
And spent years trying to understand why certain parts of the property stayed greener than others during dry summers.
Most farmers in the area dismissed his experiments.
Some years, Daniel planted cover crops that seemed unusual.
Other years, he spread organic mulch across beds that neighboring farmers preferred to leave exposed.
He tested different ground covers and monitored how quickly soil dried beneath them.
Some experiments failed.
Others helped.
But Daniel never stopped asking questions.
Then, six years before his death, he began collecting stones.
Not valuable stones.
Not gemstones.
Ordinary gray fieldstones.
He gathered them from fence lines, road cuts where collection was permitted, and an old pile beside the barn.
At first, Eli thought his grandfather intended to rebuild a retaining wall.
Instead, Daniel arranged them in rows beside a neglected patch of garden.
He called it the North Bed.
Eli remembered laughing.
“Grandpa, you can't grow vegetables in rocks.”
Daniel smiled.
“Not in them.”
He pointed toward the soil.
“Under them.”
Eli frowned.
“What's the difference?”
His grandfather crouched beside him.
Then lifted a pale stone.
The ground underneath was noticeably cooler and darker than the exposed dirt nearby.
Daniel pressed a finger into it.
“Feel.”
Eli did.
The earth wasn't wet.
But it wasn't powder either.
He looked up.
“How?”
His grandfather smiled.
“Shade. Less wind reaching the surface. Less water escaping when the soil gets hot.”
Eli considered that.
“Then why doesn't everybody do it?”
Daniel laughed.
“Because it takes work, and because it doesn't help every crop in every place.”
He placed the stone back.
“Rocks won't make rain, Eli. Don't ever believe that.”
The boy nodded.
Daniel continued.
“But sometimes the difference between losing a little water and saving a little water is the difference between a plant living and dying.”
That became one of Eli's favorite lessons.
He liked the idea that ordinary stones could have a purpose.
He liked the care involved in choosing the right place for each one.