FROG Spy Thriller Books in Order

A stranger warns the covert intelligence agency FROG of a catastrophe that could kill millions, then dies before meeting operative Adam Patterson. The team races to uncover his identity and knowledge while an elusive enemy stays ahead of them.

A Ukrainian scientist escapes the war carrying knowledge of a devastating engineered virus. FROG plans to prevent him from selling the formula, but the kidnapping of his daughter draws its operatives into a deadly contest for the secret.

FROG investigates a scheme to unleash genetically engineered mosquitoes carrying a deadly pathogen. Following violence and coercion from the Swiss Alps to Singapore, its operatives must outpace terrorists who intend to turn the insects into a global weapon.

Assassinations of bankers point FROG toward a threatened attack on Canada. As murders spread across Europe and Utah, a case of mistaken identity exposes connections to organized crime and an FBI operation, complicating the agency’s effort to prevent catastrophe.