Sorontar and Gheal, you both have a point.
It really sounds like Indiana Jones and it really had to be hidden somewhere. In the wrong hands this could be a dangerous thing.

I wonder than what happened to the royal stones of Anuire's crown. Someone has stolen them, but they are nowhere to be found and no one seems to be using them. So what was the point of that thievery? Taken to Aduria? Burried? Left on someone's table for a decoration?

Aram and the Thirty took the Sielehr with them, built churches on their way to the north, so they must've stopped for longer periods of time. Then they went to Torova, built a convict and stayed with the stone. Forever? Maybe they are fundamentalists. Why just not leave it there and go home?