Sss!
Su Mo shot straight down into the earth like a sharp sword, piercing through it at extreme speed.
Boom! Boom! Boom!!
Faintly, he could still hear thunderous blasts from above, indicating that the others had already clashed with the attackers.
Su Mo knew his time was limited. No matter which side won, they would inspect the Spirit Stone Mine at the first opportunity.
Moreover, once the mine came under attack, Black Mountain Fortress nearby would surely be notified at once. Reinforcements would arrive soon, so he had to act quickly.
Mysterious power surged around Su Mo's body, incomparably sharp as it continuously bored through the earth.
He had pushed his speed to the limit, and he was not much slower than when flying through the sky.
In an instant, he crossed thousands of miles. Before long, he had descended more than a hundred thousand miles underground.
He sensed dense spiritual energy erupting upward from the depths of the earth's core, transforming even the soil into Spirit Stones. This secretly shocked him.
He continued descending.
Two hundred thousand miles!
Three hundred thousand miles!
Five hundred thousand miles!
Eight hundred thousand miles!
After descending nearly a million miles, Su Mo finally approached the source of the spiritual energy and saw a shocking sight.
His gaze pierced through layer upon layer of earth. Deep underground, a gigantic White Dragon lay coiled in slumber.
The White Dragon's entire body consisted of white mist. Its body stretched for roughly a thousand miles, vast beyond measure and lifelike in every detail.
A staggering spiritual energy fluctuation emanated from the White Dragon, and the spiritual energy erupting upward came from the breath exhaled through its nostrils.
With every inhale and exhale of the White Dragon, spiritual energy billowed out like beacon fires and wolf smoke, dense