"As the Frost Hell is filled with cold aura and a large number of undead creatures, we are unable to continue exploring the lower levels of the shady line. The people of the Holy Court also gave up because of the annihilation and completely withdrew from Punoze."
"Later on, the undead completely occupied this world. Our family built the Frost Fortress here to prevent the aura of the shady line from leaking out. At the same time, we also protected the source of the shady line for generations."
"Protect?"
Fang Heng was a little suspicious and asked, "To prevent another accident from happening at the source of the shady line?"
"Yes, we're not sure what exactly happened at the source of the shady line, but after that explosion, the aura of the shady line leaked out thousands of times more intensely than before. Frost Fortress was originally established to prevent the shady line from leaking out on a larger scale."