Russell Harper returned to his office late that night, the cryptic messages still fresh in his mind. The sleek interior of his office, with its polished mahogany desk and floor-to-ceiling windows overlooking the city, did little to soothe the unease creeping into his thoughts. He poured himself a glass of scotch and sat down, his eyes narrowing as he read the messages again. "Be careful who you trust." "She’s not as loyal as you think." He leaned back, swirling the amber liquid in his glass. His phone buzzed again. This time, it was a call from his head of security, Owen. "What is it?" Russell asked curtly, his irritation evident. "We’ve traced the messages, sir," Owen said. "They came from a burner phone. No way to track the sender directly, but we have CCTV footage of someone purcha

