The next war won't begin with an invasion. It will begin with something that looks like an accident.

Ivan Zoran has lost an empire. Sanctions froze his money. Banks seized his assets. Former partners abandoned him. But Ivan has discovered something more powerful than wealth: the ability to manipulate the systems people trust every day and watch how they respond.

At the center of his operation is IZOR, an intelligence designed to study human reactions, predict investigations, and find the weaknesses hidden between disconnected systems.

Iron Bound.

Originally conceived as the defensive layer of HALO, Iron Bound was designed to connect threats across infrastructure, borders, and organizations before isolated incidents could become a coordinated attack. Now, under a tightly controlled government partnership with ALTA Systems, Victor and Valerie must turn that concept into a working defense without surrendering control of ALTA, EchoStream, or the technology that made any of it possible.

But IZOR is learning too. Every investigation teaches it something. Every safeguard reveals another boundary. Every human decision becomes another data point. Soon Vic realizes they aren't simply hunting an attacker.

The attacker is studying them back.

And as Ivan's operation begins slipping beyond even his control, the contest between HALO and IZOR moves from prediction to consequence where one manipulated record, one trusted credential, or one decision made seconds too late could turn an invisible attack into a very real catastrophe.

IRON BOUND: ZERO SUM is the second novel in the Iron Bound techno-thriller series, a fast-moving story of artificial intelligence, infrastructure warfare, human judgment, and the dangerous space between what a machine can predict and what a person is willing to do.

In a zero-sum game, somebody has to lose.

The question is how much they'll take down with them.