Sarah gripped the steering wheel tightly as she and her husband Mark cruised down the quiet suburban highway at dusk. Their weekend getaway had been relaxing until a sleek black sedan appeared behind them, its roof adorned with several glowing green lights.

The unusual sight made her pulse quicken. Mark, usually calm, suddenly tensed in the passenger seat. “Slow down, honey. Let them pass,” he urged, his voice unusually firm despite admitting he wasn’t entirely sure why. Sarah had never seen green lights on a civilian car before and felt a strange mix of curiosity and unease as the vehicle drew closer, its lights casting an eerie glow in her rearview mirror. Just as she began to ease off the accelerator, wondering what secrets those lights held…