Radcliffe

At 20 weeks, a team of 15 doctors at the John Radcliffe Hospital in Oxford carried out a five-hour operation to remove the cancerous cells on both ovaries behind the womb.

The author has already publicly distanced herself from Daniel Radcliffe, Rupert Grint and Emma Watson — the stars from the original “Harry Potter” films — after Radcliffe and Watson publicly condemned Rowling’s views.

It was a thinly veiled dig at Radcliffe, Watson and Grint, who Rowling seems to believe ruined her work.

The BBC has been told the book was signed off by the cabinet secretary – the UK's most senior civil servant - as having complied with the "Radcliffe Rules" around handling sensitive government information responsibly.

JK Rowling's phenomenally successful series of novels has previously been adapted into a film franchise starring Daniel Radcliffe as Potter.