It was a second-class lower-grade Stone Touching Skill, named Air Floating Skill.
Different from normal Stone Touching Skills, the mystery of this one was that, not only it formed a qi whirlpool at the Dantian, but it also used special means to make the qi whirlpool fluctuate up and down. Through the fluctuation transmitted to the outside world, one can detect the aura of the Mystic Crystal Stone.
Just looking at the degree of mystery, it was stronger than the Illusory Form Great Method.
Of course, the Illusory Form Great Method was incomplete, otherwise it would be hard to say which one was better. But the world is so vast, it's too difficult to collect the following volumes of the Illusory Form Great Method, Shi Xiaole didn't need to wait here, wasting time.
Furthermore, the Stone Touching Skill was different from internal power, which emphasized the use and changes of the qi whirlpool, so it wouldn't be much influenced by a switch.