Evangelisti’s interpretation of his character is a cruel, ruthless, haughty, restless man, who acts mercilessly to protect the Catholic Church against perceived menaces of natural or supernatural origin.

In the novels of the series he investigates the mysterious phenomena of Medieval Europe, thus subtly influencing many of the historical events of that epoch; on many occasions the solution of the riddles comes up from stories which are narrated along with the main plot, normally set in the present and in the future.

Another success of 1999, also translated in several languages, is the Magus trilogy, a romanticized biography of the famous Middle Ages prophecies writer Nostradamus.

In the last years he has written some works which show his love for heavy metal music, namely the short stories collection Metallo urlante (referring to the French magazine Metal Hurlant) and the novels Black Flag and Antracite: they are set during the American Civil War and feature a new character, Pantera, a palero shaman.

One of his latest novels, Noi saremo tutto ("We Shall Be All"), spans several decades of the last century, exploring the life of Eddie Florio, a gangster, against the background of the history of the trade unions and the workers' battles for civil rights.