Warning: There are spoilers ahead if you have not watched Sunday's episode of "Game of Thrones."
"Game of Thrones" season six just had its first death-less episode, but there was no shortage of excitement.
From meeting Sam Tarly's terrifying father to Bran's continued series of visions, there were plenty of scenes to unpack. As usual, we've broken out several details the average viewer may not have noticed while watching the episode.
Scroll down for a look at the five things you probably missed.
We saw the Mad King onscreen for the very first time.
During Bran's whirlwind of greensight visions in the opening scene, we were given a glimpse of the Mad King Aerys Targaryen — Daenerys' father and ruler of the Seven Kingdoms before Robert Baratheon. Not only did we finally see him in the flesh, but Bran's vision included Jaime Lannister killing Aerys by stabbing him in the back. For a full breakdown of the vision, head here.
One more key detail from Bran's vision was this wildfire explosion.
We know Jaime killed the Mad King before he could use wildfire — a magical substance which burns uncontrollably — in King's Landing. And the only time we've seen it in the show was during Stannis Baratheon's attack on Blackwater Bay. Tyrion blew up his fleet with it.
This scene of wildfire exploding is likely a flash forward Bran is having. Tyrion was alarmed when he realized there was wildfire stashed all over the city, and Cersei has had several lines regarding "burning cities to the ground" for her family. Foreshadowing, anyone?
Heartsbane (Sam Tarly's family sword) has an important role to play.
Sam stole Heartsbane from his father before leaving Horn Hill — a rash act that will likely have consequences in the near future. The reason he's willing to take that risk has to do with the sword's origins. Heartsbane is Valyrian steel — a rare metal forged with magic and dragon fire in ancient Valyria hundreds of years ago.
This is the same metal Jon Snow's sword (Longclaw) is made from. It's one of the only known substances that can kill a White Walker, aside from dragonglass. In the show, there are only a few Valyrian blades known: Heartsbane, Longclaw, Oathkeeper (Brienne's sword), Widow's Wail (Joffrey's sword), and the dagger Joffrey used to try and have Bran Stark assassinated.
See the rest of the story at Business Insider