The reason why Sky Sea Mountain is called a treasure mountain isn't just due to the Sky Sea Sacred Liquid.
High up on Sky Sea Mountain, the Heaven and Earth Primordial Qi is extremely rich, with its concentration increasing the higher one goes.
For example, Chen Yu, who is now past the fourth trial challenge but before the fifth, has a cultivation chamber in this vicinity that is much better than those of the Silver Emblem Holy Guard.
Chen Yu found an unoccupied cultivation chamber, entered, closed the large doors, and began to cultivate.
"The fifth challenge is much harder, and even some of the newly-promoted Golden Emblem Holy Guard can't break through. If I happen to face an external disturbance that I'm not good at dealing with, then I definitely won't make it through," Chen Yu whispered to himself.
