Michael Gregorio Books in Order

A series of unsettling murders brings Prussian magistrate Hanno Stiffeniis to Königsberg. Working under the influence of philosopher Immanuel Kant, he investigates crimes amid fear and political tension while confronting disturbing questions about his own past.

In French-occupied Prussia, Hanno Stiffeniis investigates the murders of three children and the disappearance of their mother. Collaboration with a French officer complicates a case involving a military family and tensions surrounding resistance to Napoleon.

Napoleon's occupying forces seek to exploit Prussia's amber deposits, but women gathering the stones are being murdered. Hanno Stiffeniis must identify the killer while knowing that assisting the French may strengthen their hold over his country.

A woman's drained body sparks fears of vampires in the Prussian town of Lotingen. Suspicion falls on a newly arrived stranger, forcing Hanno Stiffeniis to pursue rational explanations before escalating superstition turns the frightened community violent.

Michael Gregorio examines Italy's political, social, and financial troubles through observations shaped by decades of residence. This satirical nonfiction account questions familiar outside portrayals of the country while retaining affection for the place beneath its dysfunction.

This nonfiction portrait explores Italy's political and economic difficulties through a mixture of criticism and humor. Michael Gregorio looks beyond international reporting to consider social habits, public frustrations, and aspects of everyday life outsiders may miss.

Park ranger Sebastiano Cangio hopes to study wolves in Umbria after escaping Mafia violence. When an earthquake empties the region and organized crime moves in, protecting his new home forces him to confront the danger again.

An unidentified murder victim near London leads investigators to Umbria, where park ranger Sebastiano Cangio helps follow the trail. Meanwhile, gruesome attacks on livestock in the surrounding forest create another disturbing mystery close to home.

The murder of a fellow ranger leaves Sebastiano Cangio wondering whether he was the intended victim. Investigating his colleague's secret inquiries draws him toward truffle businesses, strange forest stories, and an organized-crime threat returning to Umbria.