After dark the temperature fell sharply.

I sat alone in the comms office in my heavy fleece jacket.

The only light in the room came from my laptop screen.

The clock in the corner read twenty-three hundred hours.

Midnight in Texas.

I opened the secure cloud folder and dragged the live camera feed to the middle of the monitor.

The front porch in Oak Ridge was pitch-dark.

The automatic sensor had switched the lens over to infrared.