Brilliant.

Kind.

Promising.

Gone too soon.

But Nia remembered something else.

Angry.

Danielle had been angry during the final months of high school.

She had attended Franklin Ridge through a regional academic program.

She had spent nearly a year developing a low-cost test strip for detecting certain contaminants in aging public-school water systems.

The project had been personal.

Their grandmother had worked in an elementary school where old pipes routinely produced discolored water.

Danielle wanted something cheap enough that underfunded schools could use it.

She built early prototypes at their kitchen table.

She tested materials.

She wrote code.

She filled notebook after notebook with calculations.

Then, three weeks before a major statewide competition, everything changed.

Danielle’s research files disappeared from a shared school drive.

Her backup folder was corrupted.

A teacher accused her of failing to properly document portions of the work.

And a different Franklin Ridge student entered a strikingly similar project at the competition.

That student won.

Danielle did not publicly accuse anyone.

At least, not according to the official record.

She left Franklin Ridge two months later.

Years passed.

The winning project became part of the school’s proud history.

There were newspaper articles.

Fundraising materials.

A scholarship.

Eventually, part of a major donation campaign.

The family attached to the winning student had a familiar name.

Caldwell.

Nia had been too young to understand any of it when Danielle was alive.

Then, the previous summer, her mother decided to clear out a storage unit.

Inside a cracked plastic container were Danielle’s old notebooks.

Eleven of them.

Nia read every page.

The deeper she went, the more the official story stopped making sense.

Dates.

Original sketches.

Failed formulas.

Teacher comments.

Printouts of emails.

And one handwritten sentence on the final page of the final notebook.

If they ever tell you I copied it, ask Mr. Keller what happened on October 14.

Nia’s mother had begged her to leave it alone.

“Nia, your sister is gone.”

“That doesn’t make what happened okay.”

“You don’t know what happened.”

“That’s why I want to find out.”

“And then what?”

Nia had no answer.

Her mother did.

“You think proving someone hurt Danielle will bring her back?”

“No.”

“Then be careful you don’t lose yourself trying to win a fight she never asked you to finish.”

Nia promised she would be careful.

Three weeks later, she applied for Franklin Ridge’s transfer program.

Now she was sitting inside the exact classroom where Danielle had once worked.

And Mr. Keller was assigning Danielle’s project like it belonged to the school.

After class, Nia waited until everyone left.

Mr. Keller kept his eyes on his computer.

“You have a question?”

“October fourteenth.”

His face changed.

Nia did not blink.

“Six years ago.”

He slowly looked at her.

“What about it?”

“My sister wrote your name.”

Mr. Keller stood.

“Nia—”

“She wrote that if anyone accused her of copying the water-detection project, I should ask you what happened October fourteenth.”

“You need to lower your voice.”

“My voice is already low.”

He looked toward the hallway.

“You don’t understand what you’re talking about.”

“Then explain it.”

“I can’t.”

“Can’t or won’t?”

Mr. Keller walked around his desk and closed the classroom door.

That frightened Nia more than if he had yelled.

He returned to the front.

“Danielle was an exceptional student.”

Nia stared at him.

“I know.”

“She was also under enormous pressure.”

“What does that mean?”

“It means memories can become simplified after someone dies.”

Nia’s jaw tightened.

“You think I made this up?”

“No.”

“Then what happened?”

Mr. Keller sat down.

For a few seconds, he looked older than he had during class.

“There were allegations regarding intellectual ownership of a student project.”

“Her project.”

“There were competing claims.”

“From who?”

“You already know.”

Nia did.

“The Caldwells.”

Mr. Keller said nothing.

That silence answered enough.

Nia took the final notebook from her backpack.

She placed it on his desk.

Mr. Keller stared at the faded black cover.

“Do you recognize it?”

His hand moved toward it.

Nia immediately pulled it back.

He stopped.

“Yes.”

The word came out quietly.

Nia’s heart began pounding.

“Then tell me what happened.”

Mr. Keller removed his glasses.

“Your sister was supposed to present preliminary results to me on October fourteenth. She arrived after school. We reviewed her work for almost an hour.”

“And?”

“And another student entered.”

“Who?”

“Lauren Caldwell.”

Avery’s aunt.

Nia had learned the family tree before transferring.

Lauren Caldwell had graduated from Franklin Ridge six years earlier, winning multiple science awards before attending Northwestern University.

Her father, Thomas Caldwell, later donated nearly three million dollars to Franklin Ridge.

Lauren was now vice president of Caldwell Environmental Systems.

Mr. Keller rubbed his forehead.

“Lauren saw part of Danielle’s prototype.”

“How much?”

“Enough.”

Nia felt sick.

“What happened next?”

“Nothing that day.”

“But later?”

Mr. Keller hesitated.

“Two weeks later, Lauren submitted a concept for the state competition.”

“Danielle’s concept.”

“A similar concept.”

“You know it was hers.”

“I knew there were similarities.”

Nia almost laughed.

“Similarities?”

“There were differences.”

“Did Danielle complain?”

“Yes.”

“What did you do?”

Mr. Keller looked away.

That was the moment Nia stopped hoping he had tried to help.

“You did nothing.”

“I reported it to the department chair.”

“And?”

“There was a meeting.”

“With who?”

“The principal. District legal counsel. Lauren’s parents.”

“And Danielle?”

Another silence.

Nia stared at him in disbelief.

“You had a meeting about whether my sister’s research was stolen and didn’t invite her?”

“It wasn’t handled correctly.”

“No. It was handled exactly how they wanted.”

Mr. Keller stood.

“You need to understand the circumstances.”

“What circumstances?”

“The district was facing a major budget deficit. Thomas Caldwell was negotiating a donation that would preserve several academic programs.”

Nia’s throat tightened.

“So they bought her project.”

“No.”

“That’s what you just described.”

“It was more complicated than that.”

“It always is when adults are explaining why they hurt a kid.”

Mr. Keller flinched.