This bubble was essentially a shared Dream Bubble. Much like in one's personal Dream Bubble, its creator was its master. Within it, they could easily add various characteristics that defied the world's rules, such as invincibility. However, this power was confined to one's own Dream Bubble. A Dream Bubble was merely an extension of one's spirit and soul, a sanctuary for mental recuperation. Being an extension of oneself, with Alka's guidance, one could certainly learn to modify it independently. And this shared bubble was no different from a personal bubble in its capacity for alteration and the addition of characteristics.
It was something Alka had constructed by depleting his power the previous night. This was mainly because his Mirror Palace had already merged into the Dream World, which allowed him to accomplish this, though it came at a price.
"Does that mean I can also construct the library from my mind here, and everyone can read in it?" Lucilia immediately piped up.
