Now that HBO’sGame of Thronesis well beyond theGeorge R.R. Martinbooks, every detail that comes from the set is a crucial piece of information in trying to map out the plot line forGame of Thrones Season 7. Today we have a few new set photos, some of which confirm that a Season 6 character will be back, while others tease some potentially icy scenes north of The Wall. There will be SPOILERS for those who want to know nothing aboutGame of ThronesSeason 7 ahead of time, so read on at your own risk.

Watchers on the Wallreports that a reader from Iceland sent in new photos from Stangarvegur, Iceland, located in the Gjáin valley, which is supposedly under construction for aGame of Thrones set. The site is reportedly near a hydroelectric dam, with the photos revealing that a massive “icy-stone alley” is currently under construction. The entire area around this hydroelectric dam is supposedly “closed for construction” until November 2018.

The site speculates that this set could tie into previousplot rumorsabout the wights, which would mean that part of this season will take place north of The Wall. Those plot details were never confirmed though, and since we don’t haveGeorge R.R. Martin’s books as a guide anymore, we won’t know for sure what happens onGame of Thronesuntil Season 7 debuts this summer. That being said, Season 6 starJames Faulknersent out a new photo from the set, confirming his return as Randyll Tarly, the father of Samwell Tarly (John Bradley).

We metRandyll Tarlyfor the first time in the Season 6 episodeBlood of My Blood, when Samwell takes Gilly (Hannah Murray) to meet his family. The meeting did not exactly go well, with Samwell stealing his father’s beloved Valyrian steel sword dubbed Heartsbane before leaving his childhood home at Horn Hill. Many fans presume that Randyll will attempt to track down his son and bring back the sword to Horn Hill, with this report revealing that the actor is filming in Cáceres, Spain. That location is more than 600 miles from where the show is filming the scenes for Old Town, where Samwell went to become a maester, in the province of Girona.

Jerome Flynn, who playsBronnon the hit series, was also seen in Caceres recently, with the actor reportedly prepping for a major fight scene. HBO hasn’t issued a season premiere date yet forGame of ThronesSeason 7, but it will reportedly debut sometime this summer, spanning seven episodes, instead of the usual 10-episode season. Take a look at the latest photos from two vastly different sets being used forGame of Thrones.