Warp Concretion

An absolutely massive titan, the Worldship is capable of carrying trillions across the stars.

In order to travel the massive overbeing Myrkul's Vein carves a rift to exit immaterium into the physical. As a thing of true size this cut would cause a warp storm if not properly attended. Thus it shrouds itself with the city constructed within Genesis in lieu of its inability to construct a core gate. Able to act on both ends of itself while so armored these stones are the result of immense planar energies smashing shut by its will alone. Energy and mass from a burrowing titan pound together as the overbeing repairs the crack left in its wake.

Freshly born they are deleterious siphons of psychic energy but once stabilized represent a rich deposit of cognizance crystals of dubious purity mired in erratic deposits of various dense and exotic elements. Such things are not products of most warp storms as stable natural things. Thus these stones are of a particular rarity among the cosmos that they exist in normal space at all. That the overbeing ever moves brings these massive specimens into existence though once at the destination side often remains to harvest. Should one find evidence where a recent warp concretion ought to be, but isn’t, then beware an Overbeing’s wary eye.