The spirit veins of the Northern Abyss Cultivation World had only just recovered to the fifth order. There certainly could not be living specimens of those two spirit plants within the secret realm.
But the spirit plants had survived in the secret realm for many years, so they must have left behind quite a few seeds.
Although sixth-order spirit plants took an extremely long time to grow—at the very least five thousand years, and sometimes even ten thousand—
with the Spirit Pearl Space, ten thousand years was nothing to Wang Daoyuan.
After entering the sea from Linhai Prefecture aboard the Thunder Roc Flying Boat, he headed straight south.
After flying for an entire day, he finally stopped on a small island.
The island was no more than a hundred li across, and there was a small lake roughly ten li wide upon it.
This island lay less than a thousand li from the Skyrend Mountain Range. Beneath the sea was a Low-grade Fifth-order Attribute-less Spirit Vein branching off from the main range of the Skyrend Mountain Range.
Wherever there was a secret realm, there was bound to be a spirit vein nearby.
After all, a secret realm also needed to exchange energy with the outside world. Without a spirit vein, it could not support a secret realm.
According to the Dragon Turtle's memories, the entrance to the secret realm was at the bottom of the lake.
Wang Daoyuan put away the Thunder Roc Flying Boat and dove into the lake.
He soon arrived beside a small stone hill on the lakebed. Weaving through the scattered rocks with several twists and turns, he quickly reached a curtain of light.
According to the Dragon Turtle's memories, the surviving great demon kings of the Demon Race were already gone.
Even if there were