With “Game of Thrones” catching up to its source material, “Winds of Winter” may now have more obvious lapses as compared to HBO’s adaptation, which, in this case, would probably earn the ire of fans as they search for any hint of Jon Snow’s hopeful revival. Now, George R.R. Martin says that HBO has already killed off one character in the series who also happened to play a huge part in his forthcoming novel, “Winds of Winter.”

Speaking to IGN, Martin explained the scope of his work in the “Song of Ice and Fire,” as well as the delays for publishing the sixth installment in the series that, in turn, allowed “Game of Thrones” to have lapses from its source material.

Martin said that there are several characters that are killed off in the HBO series who will be left alive for the books. “I have decided to do that, yes. Will you know it? I don’t know. It’s fairly obvious, because it’s something that involves a couple of characters, one of whom is dead on the show, but not dead in the books. So, the show can’t do this, unfortunately, because they’ve killed a character that I have not killed,” said Martin.

He also notes that the information he provided doesn’t exactly narrow down who will remain alive, since there are about fifteen characters in the show who are still alive in the books.

There are a lot of possibilities who that character should be, but Jon Snow is an unlikely option. HBO may plan on bringing him back, which can be attributed to either fan support or plot related. Whatever the case, that doesn’t exactly answer who Martin is referring to. Furthermore, it also imposes the question – will HBO give that role to a different character instead? Or will “Game of Thrones” soon branch out from the source material?