Della saw him from the pump house.
She let him.
He pulled a plant gently.
Looked at bolls beginning to form.
Touched the soil.
Then stood.
Della approached.
“Stealing cotton?”
“Investigating.”
“Legal warrant?”
“You lawyers ruined farming.”
“I’m not a lawyer.”
“You sound like one.”
Rayburn looked toward the ditch.
Fish broke the surface.
“You feeding them every day?”
“Automated feeders twice, supplemental once.”
“What do they eat?”
“Commercial feed. Some plant material.”
“How much feed?”
“Depends on biomass.”
He frowned.
“How much does that cost?”
Della smiled.
There it was.
Laughter had become economics.
“About twenty-six dollars an acre projected across the season.”
His eyes narrowed.
“What’s your fertilizer savings?”
“If tissue levels hold, around seventy-eight dollars an acre.”
Rayburn stopped.
“That includes feed?”
“No.”
“So net maybe fifty?”
“Before electricity, fish loss, maintenance.”
“What do you make selling fish?”
“I haven’t sold any yet.”
“You can sell them?”
Della looked at him.
“You thought I bought eight thousand fish for emotional support?”
He laughed.
“Maybe.”
Tilapia harvest came in stages.
Della sold the first market-size batch to a regional processor.
Not huge money.
Enough to cover part of feed costs.
That changed the arithmetic again.
The fish were not merely fertilizer producers.
They were a secondary crop.
By July, visitors became annoying.
Farmers parked along the road.
Extension agents called.
A university researcher asked to sample water.
A newspaper requested an interview.
Della declined the newspaper.
Accepted the university.
Her father had written another line she liked.
If someone smarter wants to measure what you’re doing, hand them a shovel and let them.
Dr. Naomi Patel from Mississippi State arrived with two graduate students.
She specialized in soil microbiology.
Della expected someone older.
Naomi was thirty-seven.
Energetic.
Direct.
She spent three hours collecting samples.
Then asked:
“Why cotton?”
“My father grew cotton.”
“That’s sentimental.”
“Yes.”
Naomi smiled.
“Good.”
Della waited.
“Scientists pretend sentiment doesn’t matter. It does.”
She pointed toward the fields.
“But cotton is demanding.”
“I know.”
“Large nutrient requirements.”
“I know.”
“Your system might be easier with vegetables.”
“I know.”
“So why start with the hardest version?”
Della looked across the farm.
“Because if it only works after I change everything Dad built, it doesn’t save this farm.”
Naomi nodded.
“That is a better answer.”
August arrived hot enough to feel violent.
Temperatures exceeded one hundred for nine consecutive days.
Conventional fields suffered.
Irrigation demand surged.
Della’s system faced its hardest test.
Tilapia liked warm water.
But not oxygen-starved water.
She ran aerators nearly continuously.
Power costs climbed.
One pump bearing failed.
She rebuilt it at midnight.
A pipe coupling burst in zone five and emptied thousands of gallons into a turn row.
She shut the system.
Repaired it.
Restarted before dawn.
She lost 214 fish during the heat wave.
She recorded every one.
Nothing about the system was magical.
That mattered.
Reporters wanted miracle.
Agronomists wanted mechanisms.