In the aspect of tunnel digging, Wang Chen's skills had reached the realm of mastery.
He had also accumulated a wealth of experience.
But he had never encountered stones that could withstand his Mudstone Technique at Great Perfection!
However, in the underground of Wind-Thunder Valley, a large number of such rocks severely hindered Wang Chen's progress into the depths of the valley.
These stones had a bluish-gray hue with extremely delicate patterns on their surfaces. Touching them with his hand, he felt an oddly crisp and numbing sensation, and his fingertips even sparkled with faint traces of electricity.
Without a doubt, the stones must contain Thunder Power within.
It was this Thunder Power that was resisting or interfering with the Mudstone Technique, making it impossible for Wang Chen to advance.
Wang Chen thought for a moment and decided not to change his direction to bypass the obstacle ahead.
He took out a Crane-beak Hoe from his Storage Bag.
