Thriller

In Halcyon, every crime hides a code. Adrian Cross, a disgraced cryptanalyst, wanted nothing more than to fade into obscurity. But when a string of murders leaves cryptic puzzles etched into the city’s walls, he’s pulled into a deadly game only he can solve. Partnered with Detective Iris Navarro, Adrian unravels a web of secrets spanning law enforcement, corporate power, and his own past. Each cipher cracked saves a life—but also reveals another victim. As the bodies pile up and the codes point closer to Adrian’s family, he realizes the truth: The city itself is a message. And decoding it may cost him everything. In Halcyon, knowledge isn’t just power—it’s survival.