Chapter 249: The Mission of This Battle

The so-called Cave Heaven is a small world that is attached to this world yet operates independently.

Within a Cave Heaven, not only can mortals survive, but the environment within a high-grade Cave Heaven also offers unique characteristics that allow mortals to cultivate certain types of Cultivation Techniques more quickly or to develop specific talents.

The first Cave Heavens were naturally existing small worlds. According to the guesses of the Immortal Monarchs from the Human Clan, many Innate Cave Heavens came into existence from the remains of Ancient Gods and Demons after their deaths.

In this world, the history of the Alien Races far exceeds that of the Human Clan. Just the recorded history of the Northern Liao alone stretches back for three million years, and the Witch Clan is even older. It is said that the oldest of tribes can be traced back to ten million years ago.