The final gateway, a thing of gleaming adamant two feet or more thick and likely to stand up to the blows of a raging dragon... something the builders may have considered, come to think of. Carved into its arch is written in letters that rearrange themselves to match the knowledge of the viewer is a message for the ages: "Fortunate are thee, traveler in the Realms of Stone who has found a jewel beyond price. Give thine skills that it may shine brighter still."
The words do not lie.
Beyond lies an enormous cavern... no a geode, its walls pure shining crystal. The Shaitans call it the Shining Egg, their eldest legends speaking of the battle waged in the deep by the Hosts of genie kin who became the Peerless Empire to slay the dreadful unborn beast which had once slumbered here. Yet for all that the beauty of the egg is as unshaped marble besides the work of a master compared to the city itself.