Meanwhile, the Four Horsemen of the Apocalypse (the powerful supernatural beings legends named War, Famine, Pestilence, and Death) are traveling across the continent, seeking to reunite and combine their powers into an ultimate destroyer of a monster; but a group of powerful adventurers is hot on their tails, including the legendary rogue scholar Erin Tarn (marked for death by the Coalition States for her writings, which criticize the Coalition States), and the 20th century's most accomplished time-displaced expert on the paranormal, Victor Lazlo (whose writings were so popular among P.A.