The Next-World Crystals

The Next-World Crystals are a set of three refined stones from The-Next-World-Over brought to the End World by the Next. Though this strange resource was originally referred to as "stardust", it was later discovered that the material is eternium, named after the planet where it comes from. The crystals were gifted to the Three Noble Strongholds of the End World with the warning that "The crystals have the power to transcend this world."