Illuminati tablet

Ancient piece of stonework discovered somewhere close to the Caspian Sea, demonstrating the venerable duration of the Illuminati lineage. The curious markings are thought to originate from the application of some kind of key. Such a device has not yet been found, although rumours concerning its whereabouts abound in underground Occult circles, as do conjectures relating to what will happen, should the thing be found and applied. Permission to forcibly excavate the tablet is expressly denied. A band of prospectors once attempted to remove the tablet under cover of darkness. The condition of their remains, discovered the next morning, has never been divulged publicly in any detail, but the incident has served to maintain a natural security around this fascinating artifact.