As the progress bar reached 99%, the air in Leo’s room grew cold and smelled of ozone and old plastic. The pixels on the screen began to bleed out into the physical world, forming the jagged, low-resolution silhouette of a person sitting on his bed.

The file was small—only 4MB—but when Leo tried to unzip it, his system clock began to run backward. 1. The Glitch

Leo looked down at his own hands. They were turning into grayscale pixels. The progress bar hit 100%, and the last thing he saw was a new file appearing on the desktop of a computer halfway across the world: leo_backup_zip .

Leo found the file on an abandoned forum dedicated to 90s MIDI music. It sat in a thread titled "DO NOT OPEN," posted by a user named in 2004. There were no replies, and the user had vanished from the site the same day.