Where the Heart of Anti-Shurtugal Rises Again.

Yes, thanks, I was thinking of them. I was scouring my degraded memories of the spork to make tenuous connections. The round pit--is that something like where Kira found the Seed? I assume it was made by the long-gone entities, which I want to call the Builders except I think that's from The Expanse? So I'm grasping at fuzzy holograms of straws.