Scholars said the ruins led to another world, as alien to the surfacers as it was forgotten. Technology existed there the likes of which those above couldn’t even begin to fathom, much less replicate. Their tales were fascinating, of course, but nowhere near as intriguing as what the witch women had to say. Allegedly, there was an oracle at the heart of this strange old world who saw all moments of every time that ever was or would be.
It would be dangerous. She might even die trying to find the oracle, but if she lived the insight she might gain into the mysterious disappearance of her brother when they were children would be worth the journey.