Arthur laughed, giddy. It was a trick. A recording. But then the next voice came through, raw and close: “Ma, it’s me. I’m at the station. Don’t wait up—I got the job at the Navy Yard. 1963. Love you.”

“AURAL MATRIX ACTIVE. SELECT WAVELENGTH: PAST / FUTURE / UNDER.”

Because the polka, at 3 AM, finally made sense.

Arthur, a pragmatic software engineer, scoffed. He built the ISO from scraps of old firmware. He formatted the USB to FAT16, a filesystem extinct since the Jurassic. He plugged it in.

He yanked the knob to UNDER .

The speakers hissed. Then, a voice—tinny, distant, real—said: “—repeat, this is WCAU, October 3rd, 1951. The Phillies have lost. Bobby Thomson’s shot is being called the ‘Miracle of Coogan’s Bluff.’ We now return to ‘The Shadow.’”

Inside, Arthur sat in the driver’s seat, fingers on the wheel, listening to everything—past, future, and under—all at once. And he smiled.