Atop a high mountain, there was a small bronze door that only allowed passage for one person.
However, it was simply impossible for ordinary people to enter through this door; even powerful cultivators at the Tribulation Transcending Stage could not find this small bronze door.
Inside the door was a unique, independent space, vast and large, somewhat similar to the Martial World.
In this world, thunder snakes crisscrossed wildly across the sky, causing constant trembling of heaven and earth.
Gigantic chains stretched across this world, their ends and origins unknown. Coupled with the roaming thunder snakes, the whole space resembled Purgatory.
In one corner of this world, there was nothing but a mountain soaring into the clouds with its peak unseen, surrounded by mountain ridges.
The mountain was grey with an aura of death about it, but upon closer inspection, one would find that there were powerful cultivators sitting on this mountain.
