From publisher blurb: Alien teenage drama. There is no escaping it. Even in the Guardian Universe. We call them: Twight. A meteor falls to Earth. Dozens of teens are infected. The drama begins! This G-Core/Guardian Universe: Revival product comes with stats for the Twight variables. Meet the Hemo-Virals, who feed on blood and turn to diamond dust when they die. The Lupine-Virals, who live by Native American code. The Psycho-Virals, everything mental wrapped up into a teenage frame.