What Is Ghosts of Sicily About? NCIS Star Mark Harmon’s Acclaimed Series Returns in April 2026
NCIS star Mark Harmon and retired special agent Leon Carroll Jr. joined forces again for another gripping tale told in their third book collaboration, Ghosts of Sicily, which comes out on April 14, 2026, as per BusinessWire. This comes after the successful release of their New York Times bestselling titles, 2023’s Ghosts of Honolulu and 2024’s Ghosts of Panama.
The book tells the true story of the Naval Intelligence officers who teamed up with the mob to fight the Nazis and protect America’s waterfronts. Senior VP and Publisher of HarperCollins Focus Matt Baugher said in a statement that this installment of the ‘Ghosts of…’ series is so far the best one yet
