Network to the Light

Characters slowly learn that this Network of Light, regulating their life with day and night cycles and vital energy to all life underground, is in fact a gift of Life given by God himself. It is called the Altheium, or Light Path, which will later be used to travel to the surface world of Altheia.

First, PCs need to discover its true meaning and how to access this tunnel of Light. Part of the difficulty will come from the fact that this Altheium is far above them, covering the "sky" ceiling of the Porphyrr gigantic cavern. Also, those who saw it for what it is, giant crystal formation, it is known to be a sacred thing, untouchable. They will thus have to travel in a place where they can reach it and then unlock its secret to get inside...