Everyone must die - the only question is how. Verona, Winter of 1267 No sooner has the former mercenary Yon Moreno come to terms with his new position as an official of the judiciary than a gruesome murder shakes the city. The victim, a well-known notary, seems to have been chosen at random. While Yon sets out to find clues, the young doctor Ada gets on the trail of a dangerous secret from his past. Suddenly Yon is in a quandary. The cunning murderer is always one step ahead of him and Ada, whose acumen he could urgently use, gives him the cold shoulder. In a murder case where everyone is a suspect, Yon and Ada must use all their skills to bring the truth to light and save the lives of innocent people. Will they manage to unmask the cunning killer before it is too late? A gripping medieval thriller about the depths of the human soul, and the limits of justice.