Order of Carmine Delmonico Books

Detective Lieutenant Carmine Delmonico serves as the central character in Australian author Colleen McCullough's gripping psychological suspense and mystery series. Set in 1960s Connecticut, these novels follow Lt. Delmonico as he navigates complex criminal cases in his role as a detective.

McCullough launched the Carmine Delmonico series in 2005 with her debut novel On, Off, and the series continues to captivate readers today. Here you'll find Colleen McCullough's Carmine Delmonico novels arranged in their original publication sequence:

About the Series: The inaugural Carmine Delmonico book, On, Off, plunges readers into 1965 Connecticut, where a gruesome discovery of dismembered remains at a college town research facility sets a chilling investigation in motion. As Lt. Delmonico delves deeper into the case, he faces haunting questions: Could the perpetrator be working within the very institution where the body was found? Has this twisted individual killed before? With an extensive roster of potential suspects—including a Nobel Prize candidate, an epilepsy specialist, a neurochemist, and numerous other possibilities—and a growing victim count, Delmonico must navigate a labyrinth of academic intrigue and deadly secrets.