The executive producers of the HBO show Game of Thrones has already given the slip that the conclusion to the books will be, in their words, "absolutely satisfying." Which has fans eagerly awaiting for the last book to come out already, as well as for the live action version in the upcoming Game of Thrones Season 5.

Now, news straight from Game of Thrones author Georg e R. R. Martin's mouth. During the Edinburgh International Literary Festival, the author was reportedly asked about all the theories that fans have been floating around concerning the remaining books in the Game of Thrones series.

The last book installments are probably going to be made up of two more novels -- The Winds of Water and A Dream of Spring. No one knows when these books will be out. Yet, the author has the lives and deaths of each of the key characters have all been mapped out by Martin. Meanwhile, the jury is still out for the destinies of the lesser characters. Knowing this fans are on the edge of their seats not just for Game of Thrones season 5 on HBO, but for the highly-anticipated books as well.

According to The Telegraph, Martin has remarked, "I've wrestled with [the issue of fan speculation online], because I do want to surprise my readers. I hate predictable fiction as a reader, I don't want to write predictable fiction. I want to surprise and delight my reader and take them in directions they didn't see coming ... At least one or two readers had put together the extremely subtle and obscure clues that I'd planted in the books and came to the right solution."

"So what do I do then? Do I change it? I wrestled with that issue, and I came to the conclusion that changing it would be a disaster, because the clues were there," the author adds. "You can't do that, so I'm just going to go ahead. Some of my readers who don't read the boards, which thankfully there are hundreds of thousands of them, will still be surprised and other readers will say: 'see, I said that four years ago, I'm smarter than you guys.'"

But the catch is that those readers who were able to figure it out, don't know they're the ones who've figured it out.

Martin will hopefully be finished with the books soon, as he is not due to write any of the episodes of Game of Thrones season 5.