After Season 5 of Game of Thrones ended last summer, fans were entering new territory, since the show had caught up with the books written by George R.R. Martin. Some had held out hope that the author would be able to release his sixth book, dubbed The Winds of Winter, before Season 6 debuted last month, but that never happened and it remains unclear when the author will be able to finish this novel. George R.R. Martin was recently in attendance at an event celebrating author Joe Hill's new book, where he revealed that a recent twist on the hit HBO TV series will be written differently in his upcoming sixth book. If you haven't caught up with this season quite yet, there will be SPOILERS below so read on at your own risk.

Last weekend's episode The Door revealed not only the tragic death of Hodor (Kristian Nairn), but revealed why Hodor was the only word he could say. Earlier this season, we saw Bran Stark (Isaac Hempstead-Wright) use his greensight abilities to go back to the past, where he saw a young Hodor, when he was called Willis, and he could say much more than just Hodor. Towards the end of The Door, The Night's King found out where Bran, Meera (Ellie Kendrick) and Hodor were staying, and invaded the weirwood tree. While Bran was being dragged out by Meera, he was still locked into his greensight vision, and when Meera was yelling back to Hodor to "hold the door," Bran and Willis heard it as well, in the past, causing Willis to go into convulsions as he started screaming "hold the door," which eventually was truncated to "hodor."

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Earlier this week, showrunners David Benioff and D.B. Weiss revealed that this twist was told to them by George R.R. Martin himself, when they visited the author a few years ago, to map out the next few seasons of the show, since his books aren't finished yet. A Reddit user met George R.R. Martin during a book signing at author Joe Hill's event, where he revealed that the Hodor/Hold the Door name meaning will remain the same, but he has rewritten the story so this reveal will happen differently in the novel.

Of course, we don't know exactly how this twist will differ in the novel, but the author reportedly revealed at this event that he came up with the Hodor name twist in 1991, and that he "seemed depressed" that the show got to reveal this twist before he did. The author added that he had no one but himself to blame for this, due to his slow writing, while joking that he envied Stephen King's writing speed. As of now, the author hasn't announced when his sixth book may be published.

Game of Thrones Season 6 continues next Sunday with Blood of My Blood, airing Sunday, May 29 at 9 PM ET. In the next all-new episode, an old foe comes back into the picture, although we have no clue who this could be. Is this the episode that Walder Frey (David Bradley) returns? We don't know for sure, but this episode will also feature. Gilly (Hannah Murray) meeting Sam's (John Bradley) family, Arya (Maisie Williams) facing a difficult choice, and Jaime (Nikolaj Coster-Waldau) finally facing off against the High Sparrow (Jonathan Pryce). Stay tuned for more details and theories as Season 6 of Game of Thrones continues.