Qing Chen stared intently at the extraordinarily strange formation of light before him, his heart full of anticipation.
Under his control, streams of runes from the Esoteric Sect Lineage spun rapidly around the stone door like a furious squall.
Joy stirred in his heart at the sight, and he exclaimed softly, "This might work!"
Yet as the seconds and minutes passed, the stone door remained tightly shut, showing no sign of opening.
Qing Chen's brows drew tighter and tighter. He had tried numerous methods and exhausted his efforts, yet the stone door remained unmoved.
Qing Chen looked around, his gaze inadvertently sweeping over his Storage Ring, and something suddenly stirred in his mind.
He suddenly recalled his earlier experience with the Vajra Mound. Without a Golden Core True Person's true essence to power it, he had consumed a vast quantity of spirit stones before he could activate it.
He thought to himself, Since this Nine-Story Tower shares similarities with the Vajra Mound, perhaps spirit stones can power this formation of light as well. This might be the key to opening the stone door!
With no time to think further, Qing Chen made a swift decision. He reached into his Storage Ring and took out ten thousand Low-Grade Spirit Stones without hesitation.
These spirit stones were all the fruits of his painstaking cultivation over the years, accumulated bit by bit. Every single one had been hard-earned.
But now, to open this stone door, he could no longer concern himself with all that.
He drew a deep breath and moved his hands rapidly, casting the spirit stones one by one into the shimmering formation of light with precision.
As spiritual power poured in, the formation's light flickered slightly, and the runes seemed to spin a little faster. The stone door also gave