After Xu Qingtong advanced to the Seventh Layer of Qi Refining, his strength increased greatly. His strike with the Rushou Seal just now had actually blasted out a pit more than three inches deep.
I've been trapped here for almost three years. It's time to leave! he thought as he walked up the stone steps.
Reaching the underside of the stone slab, Xu Qingtong examined it again. He knew it had to be connected to a mechanism, but despite searching countless times, he had never found the mechanism that opened it.
Left with no alternative, he could only resort to the crudest method. He raised his hand and brought out the Rushou Seal, channeled his magic power, and swiftly hurled it at the slab.
With a thunderous boom, shattered stone chips rained down. Xu Qingtong examined the spot struck by the Rushou Seal. Just as he had expected, the blow had blasted out a pit roughly three inches deep.
Xu Qingtong hesitated no longer. He controlled the Rushou Seal, striking the slab incessantly. A short while later, he stopped attacking. His magic power was exhausted!
"Spirit Artifacts hit harder than Magical Artifacts, but they consume far too much spiritual power!" Xu Qingtong muttered as he returned down the stone steps to the cultivation chamber. After resting for half a day, he went back beneath the slab, unleashed another barrage until his magic power ran dry, then returned to meditate and rest.
Every day, he came to bombard it for a while. The five divine seals took turns, each getting a chance to show its face, and Xu Qingtong also grew familiar with the uses of each of the Five Elements seals.
On the tenth day, with one final thunderous crash, he finally blasted a hole through the slab. Looking at