54356.rar -

The text continued. "The window behind you is unlocked. You forgot after you let the cat in. Go lock it, then come back. We have work to do."

Slowly, he reached for the mouse to close the window, but the cursor wouldn't move. A new line appeared on the screen, pulsing a dull, rhythmic red:

He froze. He looked at his watch: 9:56 PM. He usually sat down at his desk at 10:00 PM sharp. 54356.rar

Inside the final folder was a single text file: READ_ME_LAST.txt .

He downloaded the file and ran a decryption script. It didn't have a password, but it was packed with layers of nested folders, each named with a different five-digit string. The text continued

"Don't log off, Elias. I haven't finished extracting myself yet."

Elias didn't breathe. He didn't turn around. He looked at the file name again: . He realized with a jolt of terror that it wasn't a random sequence. It was his zip code. Go lock it, then come back

The progress bar at the bottom of the RAR interface, which had been stuck at 99%, suddenly ticked to 100%. Behind him, he heard the soft, unmistakable click of the window latch sliding open.