"I'm a pharmaceutical chemist, Leo. I have a cleanroom in my basement and a lyophilizer I bought from a closing university lab. I just need the map ."

"Dr. Khan," said the one with a scar on his lip. "The Omicron PDF is stolen property. Manufacturing from it violates seventeen international patent clauses. We need your hard drive, your notes, and any remaining vials."

The man didn't blink. "Then I suggest you buy the licensed version. Twelve thousand dollars per vial. Cash or wire."

On a Tuesday, with Leo's trembling hands holding a GoPro for documentation, she injected the first home-brewed vial into Mateo's port. His oxygen saturation, which had hovered at 88% for weeks, ticked up. 90%. 93%. 96%.

Dr. Aliyah Khan had spent three years chasing a ghost. The ghost lived in a corrupted, half-downloaded PDF file on a defunct server at the University of Bern. Its name: The Handbook of Pharmaceutical Manufacturing Formulations, 2nd Edition, Volume 6.