User blog comment:Dumac Dwarfking/ES games and the Towers/@comment-26893431-20180613221751

A couple of problems here; First, the Zero Stone of the Adamantine Tower is, apparently, a physical thing, as the Direnni Elves were allowed to touch it when they became mature. You can't touch something which isn't physical, like the convention.

The same thing with the White-Gold Tower, thanks to IC it's pretty much confirmed that its stone isn't the Amulet of Kings, but Tel Var. Which makes sense, considering the White-Gold Tower is older than the Amulet of Kings.

Also, none of the games were ever centered around the idea of deactivating a Tower, they were part of the aftermath, but had close to nothing to do with the game itself. I don't see any kind of reasonable reason to base a main quest around Direnni Tower.