The Vampire Diaries is a young adult horror series of novels written by the NYT Bestselling author of the Night World series, L. J. Smith. The story centers around Elena Gilbert, a high school girl torn between two vampire brothers. The series was originally a trilogy published in 1991. However, pressure from readers led the author to write a fourth volume, Dark Reunion, released in 1992. After taking a hiatus from writing for several years, L. J. Smith announced in 1998 a new spin-off trilogy entitled The Vampire Diaries: The Return, continuing the series, with Damon being the main protagonist. The first installment, The Return: Nightfall, was released on February 10, 2009. The Return: Shadow Souls and The Return: Midnight are tentatively slated for release in April, 2010 and 2011 respectively. The Vampire Diaries has been adapted into a television series and premiered on September 10, 2009 on The CW.