You’ve never heard of Roman Ganzha. But if you lived or worked in America between 1997 and 2016, there’s a good chance he stole from you.

The Spider King is the never-before-told true story of a Ukrainian child prodigy who became one of the most dangerous cybercriminals and real-world operators in modern history. By age twelve, Roman Ganzha was hacking government systems. By his twenties, he was earning hundreds of thousands of dollars a week for the Russian mob, founding cybercrime networks like Anonymous and Silk Road, and pulling off audacious diamond heists using nothing more than fake IDs, Post-it notes, and nerve.

Roman built malware that still infects networks today. He hacked the FBI, moved millions for organized crime, and stole an estimated $250 million—all while remaining a ghost in the system. And then, at the height of his power, he walked away.

With thousands of open warrants still active against him and constant pressure to return to the criminal underworld, Roman risks everything to tell his story for the first time. Written with acclaimed true crime author Everett De Morier, The Spider King is part confession, part cautionary tale, and a rare, firsthand look inside the shadowy worlds of cybercrime, organized crime, and survival.