I watched a video earlier on YouTube, and something came to my mind

I know many players have already discovered this in their playthroughs. But, still... here it is :-

The said video shows Arthur visiting the Window Rock thing with all its Red and White carvings (same colours as the feathers on the spider webs on Telegraph poles). And, after that, it shows him riding his horse and going to a cave, to investigate

There are mysterious statues inside, with three Gold bars to collect. The statue from which you collect resembles a Harpie, a winged-like bird with a female face from Greek Mythology

Is it possible this cave is / was the final step of the Spider Dream mystery ? I mean, without clues here and there, nobody would have thought about approaching the little rocky mount to check if there was a cave in it. Right ?

The video was posted by a YouTuber whose channel goes by the name "Mustafa Tarawa". So... if, per chance, he's a member of this community here, thanks for posting it 👍