Leo turned, but the room was empty. Then he looked back at the screen. The webcam light was glowing a steady, rhythmic red, pulsing in time with his own frantic heartbeat.
The file size hit 100 GB. His hard drive was gorging itself on data that shouldn't exist. Suddenly, the monitor went black, leaving only a single line of green text: Leo turned, but the room was empty
"I told you I'd be hard to find, Leo," his sister’s voice whispered, crisp and terrifyingly close. "But you always were good at following the breadcrumbs." the monitor went black