The Primordial Yang Sect had used spells to solidify the flowing mud around them into walls, forcibly carving out a Medicine Garden above the spirit vein. From the surface, not the slightest trace of the Medicine Garden could be seen. Liu Yu knew this had to be the work of a formation.
The formation protecting a spirit herb garden of this grade was bound to be exceedingly sophisticated, far beyond anything the Wu Earth Bluestone Formation could match.
"Martial Uncle Liu, this is the place."
A Qi Refining Period disciple reported respectfully.
Dressed in dark blue robes, Liu Yu nodded expressionlessly at his words.
His pitch-black eyes swept over the vast black marsh for a while, but he found no clues.
Then a faint white gleam silently lit up deep within his eyes-the telltale sign of the Heavenly Eye Art-and he looked toward the marsh again.
This time, he finally noticed something. One patch of the expansive marsh was "opaque," and through the Heavenly Eye Art, he could see wisps of spiritual energy spilling out into the surroundings.
"This is the place!"
Liu Yu formed hand seals with both hands, sending a beam of deep blue light into the ground.
The blue light spread from where they stood toward the spirit herb garden. A layer of ice crystals formed over the soft mud along its path, strong enough to bear their weight.
This was the tier-one low-grade spell Ice Condensation Art. Though weak, it was quite useful in certain situations. Liu Yu lacked the corresponding spiritual root, but learning a low-tier spell with his higher cultivation was still very easy.
He motioned for the ten Qi Refining Period disciples to go first. A blue-and-red barrier appeared around him, and he brought up the rear.
Before long, they reached the suspected