Witch King Seal, Death Sleep Wind!

"Should be." Song Changming nodded.

Yuan San cast Song Changming a questioning look. After receiving his approval, he urged forth a sinister chill, shaping it into a sharp sword that stabbed downward.

Boom!

The seemingly eternal ice instantly cracked apart, then shattered layer by layer. The fissures reached a hundred meters below.

"This ice really is hard." Song Changming was rather surprised.

With the capabilities of Yuan San's avatar, it already possessed strength at the Great Demon King level.

If that strike had landed elsewhere, shattering mountains and splitting the earth for dozens of miles would have been effortless.

Yet here, it had only cracked through a hundred meters of ice. That showed just how tough this ice was.

Yuan San gave it no further thought and continued gathering sinister cold energy before bringing down a second sword.

This time, it only carved out several dozen meters.

The deeper the ice layer went, the denser its freezing aura became. The difficulty of forcibly breaking through the ice rose sharply as well.

After only a few thrusts, Yuan San could leave nothing more than a several-meter-deep mark in the underground ice.

"I'll do it." Song Changming drew his God Devourer Blade.

Great Grandmaster power flooded the blade as it came crashing down.

With a deafening blast, the entire ice sheet shook, and an iceberg in the distance collapsed along with it.

The iceberg exposed above the ice sheet was clearly nowhere near as solid.

The depth, originally only five hundred meters, deepened by several hundred more meters with Song Changming's slash.

"Still a long way to go..."

Song Changming sensed the energy fluctuations deep below and knew they were still far away.

This deep sea was likely tens of thousands of meters deep!

If that energy fluctuation was where Yuan San's