Michael Gregorio's fiction debut Critique of Criminal Reason is a compelling, highbrow historical whodunit set in 1804. Hanno Stiffeniis, a rural magistrate, was summoned by the Prussian king to Konigsberg, to aid his mentor and the great thinker Immanuel Kant in a serial murder investigation. Fear gripped the city, and added to the tension was the threat of invasion by Napoleon Bonaparte and a dark secret in Stiffeniis’ past.
With a twisty, fast-moving plot, pitch-perfect period detail and a psychologically complex protagonist, readers "can expect stunning and thought-provoking reversals before the last clue is deciphered". I will be anxiously waiting for the sequel.
Starred reviews in Publishers’ Weekly and Booklist.