White Walkers are a great threat to Westeros for many reasons, but one of the Night King’s scariest abilities is the power to reanimate the dead — any dead. It’s this ability that’s birthed one awful new fan theory, and unfortunately, it’s plausible.
According to YouTuber The Book of White Walkers, one of Daenerys’ dragons will die and be brought back to life by the Night King before Season 7’s end. As the theory goes, the episodes will culminate in an epic battle wherein Daenerys, Jon Snow, and others go up against the Walkers. During this battle, one of the Khaleesi’s dragons will be murdered — possibly by the Night King’s ice spear — collapsing to its death, only to be revived by said king and becoming an “Ice Dragon.” Some proponents of this theory believe Viserion will be this dragon, and that he’ll go on to shatter The Wall.
Interestingly, The Book of White Walkers has already been correct in that Thrones‘ beloved giants would be reanimated by the King. They also allege that Stannis Baratheon, who viewers assumed was dead after a brutal run-in with Brienne of Tarth in Season 6, will make a comeback… in one form or another.
In the ’80s, A Song of Ice and Fire author George R.R. Martin set the precedent for the Ice Dragon when he published a children’s book about them, aptly entitled The Ice Dragon. The book tells the story of a child who partners with an Ice Dragon to battle several Fire Dragons. Together, the two win the fight, the Ice Dragon ultimately melting away. Martin has since claimed the two universes are not the same, but it’s hard not to draw some sort of comparison when the same mythological creature is in both fictional works.