The Vampire Diaries is a young adult vampire horror series of novels written by 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,The Reunion, which was released the following year. 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 as the main protagonist. The first installment, The Return: Nightfall, was released on February 10, 2009. The Return: Shadow Souls was released on March 16, 2010. The Return: Midnight is tentatively slated for release in April 2011.