At this moment.
Cheng Han looked up at the two Silent Flying Spears and smiled in satisfaction. "Finally succeeded."
This technique, which had thoroughly frightened the demon subjugation squad, had cost him no small amount of effort.
Its basic principle was to use the method of Control Strength with Spirit, wrapping the short spears in special force-energy clusters to eliminate noise.
The principle was simple.
Every warrior understood it, but accomplishing it was as difficult as ascending to heaven.
Cheng Han had performed many deductions, yet he had never found a way to eliminate the noise completely.
Later, he had a flash of inspiration. Drawing on the principles of silencers from his previous life, he found an alternative solution.
Cheng Han looked in the direction the demon subjugation squad had fled, the corners of his lips curling up slightly. "You couldn't hear anything not because it was truly 'silent,' but because the noise frequency exceeded your hearing range."
He muttered to himself, "Unfortunately, different Supernatural Creatures have different hearing ranges, so it needs constant adjustment.
"That's rather troublesome, but with the Eye of Omniscience's Deduction ability, it's barely acceptable."
Though it was merely an alternative solution, it was still an extremely difficult technique. Only those with exceptionally strong mental power and an extraordinary mastery of the Nine Elements Battle Skill could wield it.
By Cheng Han's private estimate, there were no more than ten such people in the entire Black Armor Army.
"Wuuu—"
The first short spear startled the Supernatural Creature, Ying Qiang, driving it toward a Snowy Forest.
It was worth mentioning that the spear carried a strange power that firmly drew Ying Qiang's attention.
It dodged the first spear, yet overlooked the other two.
Thus.
The scene that followed unfolded as expected.
The instant Ying Qiang darted into