In "The Invisible Currency," a thrilling Jason Noble adventure by Paul Van den Brande, readers are plunged into a high-stakes cyber mystery. Jason Noble, a financial investigator still grappling with the unsolved death of his mentor, Gregory Thorne, during a past financial scandal, is called upon for a new, urgent case. Michael Carter brings him the desperate plea of Rachel Adams, CEO of QuantumPay, a leading digital payments company specializing in blockchain technology. Millions of dollars are mysteriously disappearing from QuantumPay's systems, and the company is on the brink of collapse. As Jason reflects on his personal stake – his mentor's similar demise in a cyberattack – he receives an urgent notification from Sarah, signaling a critical breakthrough. The race against time to uncover "The Invisible Currency" and bring the culprits to justice is on, as Jason confronts not only a complex digital threat but also the ghosts of his past.