George R.R. Martin has shot down a suggestion that he has completed the final two books in the Song of Ice and Fire saga and has been withholding them until HBO’s Game of Thrones concludes.
According to Entertainment Weekly, several media reports have quoted actor Ian McElhinney, who played Ser Berristan Selmy in Game of Thrones up until season 5 in 2015, talking at a fan convention about the as-yet-unreleased books. “George has already written Books 6 and 7, and as far as he’s concerned there only are seven books,” he allegedly said. “But he struck an agreement with David and Dan, the showrunners on the series, that he would not publish the final two books until the series has completed.”
Source: IGN.com Game of Thrones: George R.R. Martin Debunks 'Absurd' Book Rumor