Cloud Piercing Sword

Xun Yawen appeared over a spot in the Central Sea, as the space around was unstable and imperfect, but became normal within her vicinity to break down again when she passed the spot. 

There was a giant pillar-like boulder which was more correct to call a whole mountain, but made of one solid piece, floating over her head, sending out formless profound ripples, currents of Spiritual Qi going in and out of it, with the flow and quantity of the ones coming out of it far greater than the ones going in.

But she did not pay any mind to it, looking down to the sea surface which was swirling in a gigantic vortex, which outer parts almost faded in the distance, and center was lost in deep darkness.

"Heh, you finally respond to my command again huh? You made me a bit nervous there"