Chapter 3: Shadows in the Library

Lillian Harper, retired from the postal service, noticed the change in her grandson. He was coming home to their bright, new apartment with shadows under his eyes.
"You're carrying the whole world in that bag, Ethan," Lillian said one evening, setting down a bowl of stew. She was seventy-two now, her hands slightly more arthritic, but her gaze was as sharp as ever.
"It's just a complex problem, Grandma," Ethan replied, rubbing his temples. "There's a gap. Like before. But Julian keeps... hovering. He makes it hard to think."
Lillian sat across from him. "There will always be people who want to pull you down so they look taller. You just keep your eyes on the math. The math doesn't lie."
The next day, the tension reached a boiling point. During Dr. Thorne's seminar, Julian presented a "revolutionary" new approach to the Navier-Stokes problem. As Julian wrote on the board, Ethan’s heart pounded.
It was his framework. Julian had taken the exact theoretical approach Ethan had been sketching in the library. Julian had fleshed it out, disguised it with Cambridge terminology, but the skeleton was Ethan's.
"As you can see," Julian said smoothly, turning to the class, "by introducing this secondary constraint, the fluid's pressure normalizes."
Dr. Thorne clapped slowly. "Brilliant, Julian. Absolutely groundbreaking. We will draft the paper tonight."
Ethan raised his hand. His hand trembled, just a little.
"Yes, Mr. Harper?" Thorne sighed, annoyed by the interruption.
"The secondary constraint doesn't hold," Ethan said, his voice quiet but echoing in the silent room. "If the pressure exceeds the Mach threshold, the equation collapses. You've created a paradox, Julian."
Julian’s face flushed deep red. "It is a theoretical model, you arrogant brat! You can't even comprehend the variables at play."
"I comprehend them because I wrote the foundation of that model yesterday in the library," Ethan said.
The room gasped. Accusing a senior graduate student of academic theft was a death sentence in the university ecosystem.
Dr. Thorne slammed his hand on the desk. "Enough! You are a guest in this university, Harper. A novelty. If you ever accuse my protégé of theft again, I will have your scholarship revoked."
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Ethan sat very still. He remembered the laughter from the registration day at the youth mathematics championship. He remembered how Dr. Caldwell had tried to humiliate him. But this time, it wasn't just humiliation. It was theft.
After class, Ethan found his locker jammed open. His primary notebook—the one containing the complete, corrected Navier-Stokes proof—was gone.