One very important fact had to be remembered.
City Steles were formed of Metarock. It was this that allowed them to meld into World Spirits and eventually replace or meld with the function of World Spirits once they grew large enough.
The establishment of a Kingdom was huge, and it was shocking enough that Sylas hadn't considered for even a moment that Casstle Main would have been so close to it.
Metarock was at least as valuable as the ore used to construct the mining treasure. The only difference was that Metarock was something that didn't need the special environment of that Cryst Heaven to form.
But now that Sylas thought about it, it might very well be the case that Metarock was to the Skai Heaven what this ore was to the Cryst Heaven.
The ability of Metarock was very specific in its capability to adapt to any laws around it and adjust to them. And such a capability was very Will-coded.
