Wang Daoyuan looked over the other spirit plants, then walked up to an exceptionally tall tree.
The entire tree was pitch-black, its massive trunk piercing straight into the heavens.
It had very few side branches. Only near the crown were there a few small branches.
Xuan Yuan immediately explained, "This is Sky-Piercing Wood. At its tallest, it can reach Eighth-order high-grade.
"The wood is hard and can be used to construct all kinds of buildings. It can also be used to make relatively crude artifacts such as warships and array disks.
"It is especially suitable for forging warship keels.
"The keels of many enormous warships in the Immortal Realm were made from Sky-Piercing Wood.
"As for refining small artifacts, though, it is not particularly suitable."
Throughout the secret realm, the vast majority of the spirit plants were things Wang Daoyuan had never seen before.
Only around the edges of the secret realm were there some spirit plants below the eighth order.
"As expected of a True Immortal Lineage that has endured for hundreds of thousands of years. This foundation truly makes one drool with envy."
Xuan Yuan wore a proud expression. "The value of these spirit plants is not particularly high. The truly good things are all in the center of the secret realm.
"Master, come with me. I'll show you what Heavenly Materials and Earthly Treasures truly are."
They had encountered two precious eighth-order spirit plants just after entering the gate.
Yet in Xuan Yuan's mouth, they had become things of little value.
The genuine Heavenly Materials and Earthly Treasures he spoke of naturally left Wang Daoyuan extremely curious.
He followed Xuan Yuan deeper into the secret realm.
When they reached a small stream, Xuan Yuan pointed at a cluster of strange grass and said, "This is called Dragon