George RR Martin
George RR Martin, author of the "Song of Ice and Fire" fantasy series that is the basis of the television series "Game of Thrones," gestures during his masterclass at the Neuchatel International Fantastic Film Festival (NIFFF) in Neuchatel, July 10, 2014. Reuters/Denis Balibouse

George RR Martin is still working on “Winds of Winter,” the author said at an on stage interview at the recent World Con event. The author also answered a few questions related to “A Song of Ice and Fire.”

The discussion was hosted by science fiction and fantasy illustrator John Picacio, who was there as an artist guest of honour. Picacio previously worked on the first “A Song of Ice and Fire” calendar in 2012.

The most important question that is on every fan’s mind is the progress on “Winds of Winter.” Martin said that he is working on it, and added that the fans will know about it as soon as he’s done because this is a “shot” that will be “heard around the globe,” WinterIsComing reports.

Martin was asked about the Valyrian steel sword known as the Dark Sister that was wielded by Visenya Targaryen. The sword came into the possession of Bryden Rivers, who went on to become the Lord Commander of the Night’s Watch, and later he became the Three-Eyed Raven. Martin revealed that Bryden took the sword with him to the Wall. It isn’t clear what happened to the sword after that, and the report suggests that it could still be in the cave beyond the Wall.

While Martin answered a lot of questions about the book series, there were a few that he chose not to answer. He didn’t reveal whether there’s a missing Clegane sister, and he also didn’t talk about the possibility of the return of the red comet.

The “Game of Thrones” TV series has already revealed a lot of the storylines that are yet to addressed in “Winds of Winter,” and the final season is ready to reveal the ending. Martin however, explained that the books need not follow the same route as the show. Some of the characters that are dead on the show will continue to live on in the books, the author said.