The Blair Partnership, J.K. Rowling’s new agency, has announced that the Harry Potter author is publishing a new book for adults.

The site reads:

We are pleased to announce That our client, J.K. Rowling, will be releasing a new novel for adults. Further details will be announced later in the year.

The Blair Partnership is a literary agency. We are in the business of taking care of authors, their talent, their careers and their success.

The book will be published by Little, Brown in the United States. A note from Rowling on the Blair Partnership website indicates:

Although I’ve enjoyed writing it just as much, my next novel will be very different from the Harry Potter series.

We will of course be covering any and all news about this new book as it develops over the next few months and years!

What do you think the book will be about?

UPDATE 1: Publisher’s Marketplace indicates Little, Brown won the rights to the book and a longer quote from Rowling is below…

“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. 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. 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.”

UPDATE 2: I’ve written a column about the potential for midnight release parties – read it here. We’ve also posted a few new updates concerning Jo’s website along with Staff and Reader predictions concerning what the book will be about!