An HnK spin-off/inspired story In a land where humanoid minerals roam, they must fight for their existence against the warriors of the Moon known as the Lunarians. The youngest of the Gems has always strived to become a great fighter. Cat's Eye Opal, aka Copal, will do anything to achieve that goal. Their weakest, Talc, is tasked with taking on Copal as his ward, primarily to keep the reckless youngling in line. However, as mysteries of the Moon begin to unfold, how will the Gem’s story unravel?