J.K. Rowling's Pseudonym

Yes, you read that right.
Remember, this is not the 1st of April, so I have no reason to be pulling one over you. And trust me, this is very much real news. J. K. Rowling, acclaimed author the Harry Potter series, published a crime novel by the name of The Cuckoo's Calling under the pseudonym of Robert Galbraith in April this year.
Rowling, who published her allegedly first adult novel, The Casual Vacancy last year, has confirmed the claims. The Cuckoo's Calling has, quite differently from The Casual Vacancy, done incredibly well - apparently a little too well, as quite a few reviews seemed sure it would turn out to be written by an incredibly famous author; if only they'd known! The Casual Vacancy sold well, but mostly received mixed reviews - in large part thanks to constant comparisons to the Potter books, as I commented here.

Here is the blurb of The Cuckoo's Calling for any of you interested:

"A brilliant debut mystery in a classic vein: Detective Cormoran Strike investigates a supermodel's suicide. After losing his leg to a land mine in Afghanistan, Cormoran Strike is barely scraping by as a private investigator. Strike is down to one client, and creditors are calling. He has also just broken up with his longtime girlfriend and is living in his office.

Then John Bristow walks through his door with an amazing story: His sister, thelegendary supermodel Lula Landry, known to her friends as the Cuckoo, famously fell to her death a few months earlier. The police ruled it a suicide, but John refuses to believe that. The case plunges Strike into the world of multimillionaire beauties, rock-star boyfriends, and desperate designers, and it introduces him to every variety of pleasure, enticement, seduction, and delusion known to man.

You may think you know detectives, but you've never met one quite like Strike. You may think you know about the wealthy and famous, but you've never seen them under an investigation like this."