Mark Harmon releases ‘Ghosts of Sicily’ book with NCIS agent, fans can’t put it down
Mark Harmon and retired NCIS agent Leon Carroll Jr. just released their third collaboration, Ghosts of Sicily, on April 14, 2026. Readers are absolutely captivated by this gripping true story of World War II naval intelligence partnering with the mob to protect America. Early reviews show fans can’t put it down.
Mark Harmon and Leon Carroll Jr. have become known for uncovering hidden history through their nonfiction collaborations. Their latest book, Ghosts of Sicily, transports readers to 1942 New York to discover how the Office of Naval Intelligence (ONI) took an unprecedented step. They formed a controversial alliance with Charles Luciano and his organized crime network to protect America’s waterfronts from Nazi threats.
The 304-page hardcover weaves together the stories of historical figures like Meyer Lansky and General George Patton alongside lesser-known heroes. Readers follow daring agent Tony Marsloe and his fellow operatives as they navigate high-stakes espionage, dangerous undercover missions, and the brutal realities of wartime sacrifice.
