Ling Xiao carefully placed the Martial Soul Fruit into the Mountain and River World, and then he uprooted the Martial Soul Fruit Tree, planting it within the Mountain and River World as well.
The Martial Soul Fruit would only ripen once every three thousand years, but within the Mountain and River World, this process would accelerate.
A year outside meant one hundred years inside.
Of course, this was only true for spiritual medicines, spiritual plants, and the like.
In other words, after thirty years, Ling Xiao would be able to obtain new Martial Soul Fruits, which could be considered a decent investment.
In the Mysterious World, thirty years were but the blink of an eye.
"Brother Ling, be careful!"
Just as Ling Xiao was preparing to return to the submarine ship, the ground suddenly shook violently, and then a huge crack opened up on the seabed.
"Run!"
Ling Xiao shouted loudly.
He had discovered something extremely terrifying.
