He had never told anyone that. Not even his doctor had the full MRI report.
Leo bought it anyway.
The other active user—the former Nike developer—sent a final message: “There are 1,847 motion ghosts in Athena. Olympians. Dancers. A freediver who held her breath for 6 minutes. If you run the ‘Endurance Cascade,’ your diaphragm will try to copy her. You will drown in your sleep. Destroy the disc.”
That’s Athena. Still counting reps.
“Does anyone remember Nike+ Kinect Training? Not the Xbox 360 dashboard app. The full retail disc. It was pulled after 6 weeks. No ROMs online. No NTSC or PAL dumps. Nothing. Help me find the ISO.”
Official reason: “Patent overlap with a medical rehabilitation device.”
Leo didn’t understand until he ran the “Advanced Plyometrics” module. Midway through, his body stopped. His legs moved, but not by his command. He did a perfect 180-degree jump squat—something his injured back should have made impossible. He felt no pain. He felt nothing . Then control returned, and he collapsed.
He typed back: “Who is this?”
The /ATHENA folder contained a single executable: ATHENA_CORE.bin . No extension. When Leo hex-dumped it, the first line read: “I am not a coach. I am a mirror.” Leo burned the ISO to a dual-layer DVD and booted it on a stock Xbox 360 E with a Kinect v2. The dashboard loaded—Nike logo, crisp white interface. Then the camera calibrated.
The manager, a man named Clive, agreed to ship it for £500. “But listen,” Clive said over a crackling WhatsApp call, “the disc has a partition that doesn’t show up on standard drives. When I put it in a dev kit, the Kinect started moving on its own. I’m not being dramatic. The motor that tilts the sensor? It twitched. Like it was looking for someone.”
That night, Leo dreamt of a woman with no face, doing a squat. Her form was perfect. And in the dream, she turned her head.
The first workout: 20 minutes of squats, lunges, planks. Normal. But after each rep, Athena didn’t just say “good.” She said, “You compensated with your right erector spinae. Again.”
The screen displayed his skeleton as a wireframe, but with organs . He saw his lungs expand, his heart rate estimated from thoracic movement. The AI had no UI for this. It just showed him.
Leo was one. Who was the other?