They killed the system. But something survived.
After destroying the predictive AI known as The Black Sibyl, David Rourke thought the future was safe. He was wrong.
Now leading a covert black ops unit codenamed Protocol Zero, Rourke is pulled into a global conspiracy known as FALLLINE-a hidden movement using AI remnants, rogue operatives, and weaponized belief to manipulate the world's future from the shadows.
From a crashed Russian aircraft in Greenland to a buried node in Antarctica, Rourke and his team uncover a chilling truth: the next war won't be fought with weapons-but with trust. If FALLLINE's plan succeeds, the world won't be conquered. It will simply believe it was always theirs.
As time runs out, Rourke must trace a signal that doesn't officially exist and confront a system designed not to predict the future-but to compose it.
Protocol Zero is the explosive fourth novel in The Rourke Protocols series-a gripping spy thriller packed with black ops action, global stakes, and a chilling conspiracy that feels all too real.
Perfect for fans of Jack Ryan, Gregg Hurwitz, Mark Greaney, and The Night Manager.