There is a hidden world beyond the curtain of the world we know. Glimpses of it are seen in the news, and countless stories take place in it. It is a world of spies, arms dealers, assassins, and black operations. It exists at the intersection of organized crime, espionage, and terrorism. If it had a name, the most fitting would be the Shadow World. The Shadow World series follows a former CIA agent named Simon Kane on a quest for revenge on the organization that killed his wife and the people he meets on that quest.