DARK PROTOCOL

Money is the frequency no one can hear.

Six months after the Las Vegas water crisis, Eli Voss is no longer hiding. He is on Mara Chen's cross-sector threat task force, carrying federal credentials and hunting the people who have spent two years attacking America's infrastructure. The grid. The water. Each time, they stopped the worst from happening. Each time, the adversary learned.

Now Volkov is back. And this time, the target is invisible.

When $6.2 billion vanishes from SWIFT network transactions during a routine settlement window, the world's financial institutions have 72 hours before confidence collapses. The attack is elegant: compromised undersea fiber optic cables feeding falsified transaction data into the global banking system. No money was stolen. Something worse happened. The records were changed. And if the records cannot be trusted, money itself stops working.

The weapon is a 26-year-old fintech developer in London who believes he is building a better financial system. The reality is that he is building a bomb, recruited through ideology by handlers who turned his contempt for Wall Street into the most sophisticated cyberattack ever attempted. Eli and Mara must trace the attack from cable landing stations on three continents to a GRU facility outside Moscow, building a coalition of former adversaries to stop a financial cascade that will trigger bank runs, freeze credit markets, and crash the global economy.

The grid was fragile. Water was worse. Money is everything.

DARK PROTOCOL is the final book in the GRIDFALL series. The hunt for Volkov ends here.