"Harry Potter" author J.K. Rowling has revealed new details about her first book for an adult audience, including the title, "The Casual Vacancy."
The novel also received a release date, according to the Little, Brown Book Group's website, "The Casual Vacancy" will be released in hard cover, ebook, unabridged audio download and on CD on Thursday, September 27, 2012.
The publishing company also revealed the plotline for the upcoming novel which they described as being "blackly comic, thought-provoking and constantly surprising."
"When Barry Fairweather dies unexpectedly in his early forties, the little town of Pagford is left in shock," the Little, Brown website said of the novel. "Pagford is, seemingly, an English idyll, with a cobbled market square and an ancient abbey, but what lies behind the pretty façade is a town at war. Rich at war with poor, teenagers at war with their parents, wives at war with their husbands, teachers at war with their pupils... Pagford is not what it first seems."
"And the empty seat left by Barry on the parish council soon becomes the catalyst for the biggest war the town has yet seen," the statement continued. "Who will triumph in an election fraught with passion, duplicity and unexpected revelations?"
Rowling and Little, Brown announced the novel in February, offering little details about the plotline.
"Although I've enjoyed writing it every bit as much, my next book will be very different to the Harry Potter series, which has been published so brilliantly by Bloomsbury and my other publishers around the world," Rowling, 46, said in a statement released by Little, Brown.
"The freedom to explore new territory is a gift that Harry's success has brought me, and with that new territory it seemed a logical progression to have a new publisher," Rowling continued. "I am delighted to have a second publishing home in Little, Brown, and a publishing team that will be a great partner in this new phase of my writing life."
Rowling's agent Neil Blair did not reveal financial details regarding the deal, but told the Associated Press that his client would continue to work with Bloomsbury in Britain on the "Harry Potter" series.
"As her new book is for a different audience, and marks a new literary direction for her, it made sense to separate the two and for her new book to be launched by a different publisher," Blair said.
Bloomsbury is releasing new editions of the seven novels, which have been translated into 74 languages. Some 450 million copies are already in print.
The movie franchise based on the books have earned more than $7 billion worldwide and the final installment, "Harry Potter and the Deathly Hallows - Part 2," was released in July 2011.
Rowling, the world's richest author with an estimated net worth of at least $1 billion, has often talked about her past as a struggling, single mother and how she wrote her first "Harry Potter" stories in coffee shops in her native United Kingdom in a bid to save on heating bills.
Her new novel will be available in both print and electronic formats. Rowling revealed last year that the "Harry Potter" e-books would be available on the "Pottermore" website. Their e-book release is set for later this year.