A shadowy phantom stalks the catacombs beneath Rome, threatening the city and revealing hidden destinies. Bud, Ivy, Maeve, and Bert venture to Vatican City to investigate peculiar disappearances connected to the World Games opening ceremony. They find themselves entangled with The Order of St. Michael, the only force capable of confronting an invisible threat that lurks in ancient passageways. As family histories unravel and destinies converge, the group must confront the Phantom before it consumes Rome.

The Bud Hutchins Supernatural Thrillers series continues with an exhilarating installment that deepens character growth and weaves intricate mysteries. Readers' Favorite reviews highlight the book's ability to present 'mysteries upon mysteries' and deliver an 'exhilarating and commendable' experience. Critics praise Phantom of the Catacombs as an 'excellent continuation' of the series, noting its engaging plot and supernatural elements. Fans of fantasy are expected to find this a 'fascinating read' that fulfills the series' promise of supernatural intrigue and destiny.