"There seems to be something underneath this array," Otarais whispered to Brand after observing for a while. She vaguely sensed a corrosive magic seeping up from underground, like underground water overflowing to the surface. Wind Elves are innately sensitive to magic; otherwise, they wouldn't have been able to create the fantasy-like existence of magic sword skills. Brand nodded, and the Deer Demon Sister guided the way ahead; after leaving the Crystal Cave, they continued to delve deeper.
After walking for a while, the four walls underground suddenly presented a strange dark red color. Upon closer inspection, this dark red was actually caused by a sand-like rock layer, embedded with quartz-like crystals that sparkled under light. Brand touched it with his hand and, upon examining his palm, was shocked to find it covered in crystal powder.
"What's going on here?" he couldn't help but stop and ask.
