EntertainmentTVFantasy ShowsGame of Thrones TV showGame of Thrones author George R.R. Martin knows he’s “13 years late” on the next A Song of Ice and Fire book and says he might never finish it: “That’s still a priority"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentTVFantasy ShowsGame of Thrones TV showGame of Thrones author George R.R. Martin knows he’s “13 years late” on the next A Song of Ice and Fire book and says he might never finish it: “That’s still a priority"When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: HBO) Game of Thrones author George R.R. Martin doesn’t know if he’ll ever finish The Winds of Winter, the next book in the A Song of Ice and Fire high …