'Game of Thrones' writer reveals what The Night King's sigil actually means. Read here

Still having nightmares about that bit in  Game of Thrones season 8 premiere when little Ned Umber's de body, which was pinned against a bunch of severed limbs, suddenly woke up and started screaming? Us too.

You may also have lost a few hours' sleep wondering why disembodied parts were arranged into a lovely spiral pattern by White Walkers. Well, premiere's writer Dave Hill has w revealed what terrifying sigil means, and it probably won't help you get to bed, to be honest.

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Speaking to  New York Post in a wide-ranging interview, Hill explained: "As we saw with Bran and Three-Eyed Raven, spiral pattern was sacred to Children of Forest, who created Night King by sacrificing a captured man in a spiral 'henge of stones'." Night King n opted symbol as a sort of blasphemy, like Satan with upside-down cross."

We’ve seen omius-looking sigil numerous times before. In season seven, episode four, titled ' Spoils of War', Jon shows Daenerys carvings on walls of caves beneath Dragonstone. y were inscribed re by Children of Forest and represent period in which y united with First Men, despite both factions being at war for centuries, to defeat White Walkers.

We also saw symbol in very first episode when Night’s Watch came across a group of Wildlings who h been slaughtered by White Walkers.

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And again in season three, when Jon Sw found severed remains of Night Watch’s horses laid out in same pattern.