Game of Thrones author George R.R. Martin stopped by CTV's Canada AM this morning to talk about the final two books of his A Song of Ice and Fire saga, revealing that even when he finishes the seventh novel, he won't be ready to stop writing about Westeros altogether.

"It will be very hard to say goodbye to these characters, (but) I don't know if I will necessarily say goodbye to the world," Martin said. "Even when I finish this story, I think there will be other stories to tell set in the world of Westeros."

He says he's currently 200 pages into book six, The Winds of Winter, and hopes to finish within two or three years.

Martin, who took six years to write A Dance With Dragons, has said before that he's now learned to be wary about giving timelines.

And with most of Winds and all of A Dream of Spring to write before the series concludes, the HBO adaptation of Martin's books could actually catch up with him.

"There's always the fear . . . will I fumble the ball at the end, will I make a mistake?" Martin said.

As for the show, Martin says "there is no feeling quite like" seeing his characters come alive, even if they're never going to be exactly the way he imagines them.

Game of Thrones returns April 1st.

[ctv]