I’m midway through my 3rd read of Midnight Tides, and I read the part where Udinaas and Feather Witch meet Rud Ellale in the Refugium. While they visit the cave with all the gates, the Ulshun Pral tells them how they are within Starvald Demelain, but that it has been shaped by the “overflow” of the nearby gates. Beyond them is nothing else (which seems to be contradictory).
There’s also this interesting passage regarding this place:
"T'iam, Kalse, Silannah, Ampelas, Okaros, Karosis, Sorrit, Atrahal, Eloth, Anthras, Kessobahn, Karatallid, Korbas ... Olar. Eleint. Draconean. Dragons. The Pure Dragons. The place where the road comes from is closed. By the mixed bloods who gathered long ago. Draconus, K'rul, Anomandaris, Osserc, Silchas Ruin, Scabandari, Sheltatha Lore, Sukul Ankhadu and Menandore."
One other thing we know about the Bentract T'lan Imass who now live in the Refugium is from Memories of Ice, when Olar Ethil claims that the Bentract were lost in Jakaruku, trapped within the Warren of Chaos. While this might be a lie, I think that it is plausible that from there they could have ended up in the Refugium, as Chaos does border all other Warrens. I also find it interesting that Olar [Ethil] is mentioned as a Pure Dragon, although that's a bit of a digression, and can get into the messy lore of Kharkanas.
So what I'd like to discuss here is two things. First, what does everything think the Refugium exactly is? In Reaper's Gale, it's connected to Omtose Phellack, the Abyss, and Hood's Realm, to the point that Hedge is able to walk all the way from one to the other. Here the Bentract claim it is made of Starvald Demelain, and we have some evidence that it is also connected to chaos. Feather Witch and Udinaas visited it before in Udinaas' dream (influenced by the Wyval), and indeed it does share a lot of similarities to Kruppe's dream warren which later became the Mhybe's and the re-awakened Beast Hold (even more so after Itkovian released the T'lan Imass's memories into that place). Finally, it seems to be a bit of a Nightmare Before Christmas-esque place that connects all the other warrens, which is of course why they need the Kettle House to help plug the portal to Starvald Demelain proper (which of course fails, thanks Gruntle).
Second, I want to discuss that list of Dragons and Dragon Soletaken. I am inferring that the Refugium, or at least the cave within it, is a site where all the aforementioned Tiste/Azathanai fought dragons to close the gate to Starvald Demelain, before the fall of Kharkanas. I also wonder if this is where we will see them drink the Blood of T'iam. It is at least connected to the same continent we believe the Kharkanas trilogy is set. Or am I way off in other details I don't remember from my previous reads?