Nestled in a small chamber at the edge of the black desert, two crystals of light vibrated heavily, running around in circles like a pair of panicking children.
The source of that panic was the shadowy creature with a wide grin and an echoing giggling sound swinging its hands against a barrier protecting the crystals. Every time those hands, which looked like spiked tentacles, struck the barrier, the outer layer of the barrier shattered like broken glass. The crystals would take turns fixing the broken barrier and add another layer, but after doing it for a whole day, they were getting exhausted.
Normally, they wouldn't be bothered by any beasts that might come close to their barrier. Those creatures made of miasma couldn't breach their barrier anyway. But that one--that one big shadowy creature...