The Darkness series is a three-part Nick/Natalie story by PJ1228. It comprises the following: 1. * "Shadows from the Past"(March 2004, R)While attending a congress in Venice, Natalie is confronted with Nick's past. 2. * "Descent into Darkness"(July 2004, R)After her return from Venice, Natalie has to deal with unexpected consequences. 3. * "Darkness Prevails"(December 2004, NC-17)Natalie struggles with the first nights of her immortal life.