Crux of Darkness

Cruxes of Darkness are objects affiliated with the Pyramids. They are the sources of Splinters of Darkness.

Overview
Cruxes are large polyhedral objects, made of the same chiseled-obsidian material as other artifacts of the Pyramids. They hover in place with their longest point facing down; when activated, their panels open and fragment to reveal an orange-glowing core, and small pieces of their exterior join together to form a Splinter of Darkness. When inactive, their surfaces continually ripple in a wave of small triangular segments.