Mina powered it on. The LED brightened; the LCD flashed a single line: INIT: WAIT. She tapped the keypad out of habit—three digits, two. The screen blinked: CHALLENGE? The device wanted to issue a challenge, not solve one.
One evening, a man in a gray coat arrived with the same sticker that had been on the crate. He moved through the lights in the warehouse like someone who already owned the shadows. He asked Mina for the unit, at first politely, then with a patience that felt rehearsed.
"This machine is not for sale," she said. "And I'm not shipping it back."