Concern: A black-ops investigator uncovers an espionage conspiracy rooted in quantum code (Paperback) (ISBN-13: 9781919221601)

When a St Petersburg restaurant is ripped apart by a bomb, consulting mathematician Marc Naedorf is dragged back into the shadow world he thought he'd left behind. Once an intelligence analyst, now an outsider with a gift for spotting hidden patterns, he finds himself at the heart of an international mystery where every answer raises new questions.

With MI5 and CIA espionage networks looming in the background, Naedorf follows a trail that winds from the Russian mafia to the boardrooms of multinational corporations. Superpowers are vying for quantum computing supremacy, cyber hackers are breaching global systems, and a covert conglomerate is manipulating markets through rogue AI and corporate conspiracy. From climate change profiteers to ruthless mercenaries, Naedorf must navigate a labyrinth of deception where even allies can't be trusted. Protecting him from the shadows is the Englishman known only as MYRMIDON - a lethal guardian and black ops specialist whose silence hides deadly intent.

What begins with a single explosion unravels into a high-tech conspiracy with stakes far beyond one man's survival. Somewhere in the data, buried deep in quantum code, lies an enemy unlike any he has faced before - an enemy that doesn't think like him.