JK Rowling is releasing another book under the pseudonym Robert Galbraith, called "The Silkworm." This is the second crime novel under the fake name released by the "Harry Potter" author. The first book was titled "The Cuckoo's Calling," and followed private investigator Cormoran Strike."

In "The Silkworm," Strike is back after being hired by the wife of a missing novelist. This will be the second book in the Cormoran Strike series and is due out June 24, Publisher Little, Brown said. Hachette Book Group released a synopsis of the crime novel, which reads:

"Private investigator Cormoran Strike returns in a new mystery from Robert Galbraith, author of the #1 international bestseller 'The Cuckoo's Calling.'

When novelist Owen Quine goes missing, his wife calls in private detective Cormoran Strike. At first, Mrs. Quine just thinks her husband has gone off by himself for a few days - as he has done before - and she wants Strike to find and bring him home.

But as Strike investigates, it becomes clear that there is more to Quine's disappearance than his wife realizes. The novelist has just completed a manuscript featuring poisonous pen-portraits of almost everyone he knows. If the novel were to be published, it would ruin lives - meaning that there are a lot of people who might want him silenced." You can read the entire synopsis here.

After Rowling completed the "Harry Potter" series, she released "The Casual Vacancy" under her own name before using the Galbraith alias. In previous interviews Rowling said she wanted to keep Galbraith's real identity a secret for as long as possible but the information was leaked by a lawyer.

At first the author was upset over the lawyer blowing her cover but later admitted to using the name and said she would continue publish books under Robert Galbraith.