The stone created a void that sucked in its target. The ones sucked into the void disappeared forever, never to be found again. The theory was that the ones who disappeared into the void were transported into a different realm. A hostile and desolate realm that spelled doom to those who ventured into it.
It was said that the stones were created from an experiment using an unknown material. The technique of making the stone had been lost to time. It was said that only a handful were created at one time. Subsequent trials to recreate the stone resulted in failure. Hence, the handful that existed was extremely rare because each usage of the stones meant fewer left in existence.
Amon looked at the small rock on the pedestal. This rock could be the last of its kind.