Plague Journal is Michael O'Brien's fourth novel in the Children of the Last Days series. The central character is Nathaniel Delaney, the editor of a small-town newspaper, who is about to face the greatest crisis of his life. As the novel begins, ominous events are taking place throughout North America, but little of it surfaces before the public eye. Set in the not-too-distant future, the story describes a nation that is quietly shifting from a democratic form of government to a form of totalitarianism. Delaney is one of the few voices left in the media who is willing to speak the whole truth about what is happening, and as a result the full force of the government is brought against him.