The cold midnight wind howled across the dark waters of Lake Geneva, carrying a sharp, biting chill that froze the very soul. The harbor was mostly quiet, save for the rhythmic splashing of dark waves against the wooden pillars of the piers and the distant hum of city traffic fading into the night.

Inside the black SUV parked deep in the shadows of the shipping crates, the air was thick with pure, burning tension.

Clara stared at the glowing laptop screen on Silas's lap, her breath catching in her throat. The image on the small display was clear and terrifying. Her young stepsister, Lily, was standing on the deck of...