A Fourth Dimension: The Sculken Realm

Many have speculated about what the Ancient City statue is. I propose that it becomes a portal to a fourth dimension: the Sculken Realm. It would be a dark world completely made of sculk and the bonelike material that the shriekers and catalysts are made of. I'm not entirely sure what structures this dimension would have, but I have thought of one: a huge fortress in the middle of this world. It would house more Wardens, but also a new boss: the Soul Keeper. This enemy could attack with soul fires and a special sword infused with soul power. If killed, it could drop its sword which would make battling stronger mobs like the Warden or the Dragon easier. If anyone has any other ideas of how this dimension would look, what sort of structures could be found inside, or what loot could be gained from venturing into the Sculken Realm, feel free to post it in the comments!