same anon but since it was explained as a security measure for the mccall’s, it stands to reason that it’s the same reason for lydia’s grandmother? if she was afraid for her life because of a supernatural threat, it’s reasonable to assume that it would make sense. it’s not a plot hole and is functioning exactly how they have been explaining it since season one
The house wasn’t a closed space for a reason; grandma martin wanted lydia to sprinkle her ‘ashes’ in the LAKE for a reason. probably house’s structure is way complicated as the opening in the circle seems to be in the boat shed, so to seal the circle you’d have to add a line of ash on the shed’s opening or close its doors maybe. Please dont call it a plot hole just yet :) also just ‘cuz lydia said the house is made of rowan doesnt mean its 100% true, could be the lake the ash circle was around!
I don’t want to argue, it could be anything; i hope it would be miraculously explained in the next episode. But in the present situation the set-up of Lydia’s mountain-ash-house statement irks me to no end, because of dramatics and a shaky mythology behind it, i mean, guys, the things you said are possible, but why pointedly tell us “the whole house” if its not true?
that’s the last post on this matter, sorry, my irritation is mine - I wanted to expess it and I did.