Rowling's law firm apologise for leaking her pseudonym

A law firm representing J.K Rowling have admitted that one of its partners inadvertently leaked that she had authored a novel under the pseudonym Robert Galbraith.

The Sunday Times revealed that it received the tip-off on Twitter, and there had been speculation that Rowling or her publisher were behind the leak.

J.K. Rowling had authored a mystery novel, 'The Cuckoo's Calling' Credit: Press Association

But law firm Russells said one of its partners, Chris Gossage, had let the information slip to his wife's best friends, Judith Callegari, the woman behind the tweet. Apologizing "unreservedly", the law firm said:

"We can confirm that this leak was not part of any marketing plan and that neither J.K. Rowling, her agent nor publishers were in any way involved."

The apology did not seem to be accepted by the author, who said:

"Only a tiny number of people knew my pseudonym and it has not been pleasant to wonder for days how a woman whom I had never heard of prior to Sunday night could have found out something that many of my oldest friends did not know.

"To say that I am disappointed is an understatement. I had assumed that I could expect total confidentiality from Russells, a reputable professional firm, and I feel very angry that my trust turned out to be misplaced."