Stone Menace

The Stenza do not know the identity of this creature, only that it is made of some sort of stone and only moves when it is not being observed. Reports may have exaggerated its size in the intervening years since the conflict which led to Unification, which is almost assuredly a mark of the impact the creature had on the people.
The Stone Menace is of unknown origin, and landed on Mudewei like a meteorite. It exhibited the strange ability to make individuals disappear, and eventually switched to simply snapping the necks of its enemies, a now frightened Stenza population struggling to fend it off. Iradae the Lawgiver rallied the survivors into a cohesive strategy to kill the creature or, failing that, imprison it. Out of this, the technology of Stasis, and the means to transport the bulky stasis pod to a safe location, were developed.
To this day, the Stone Menace is under constant supervision by the Guard Crew of the Artificial Moon, who search for any weaknesses in its containment that might allow it to break free and finish what it had started.