A vast surge of power poured from the runes, driving him back several steps! Its strength far exceeded his imagination, leaving his arms numb and the webs between his thumbs and forefingers aching! Had he not reacted quickly, he would have been sent flying!
Lin Feng steadied himself, but a flicker of delight crossed his eyes. The energy within these runes was a hundred times purer than that of God Crystals! If I could borrow just a little...
He stepped forward again. This time, instead of rashly reaching out, he sat cross-legged before the runes and closed his eyes to sense them. His spiritual sense reached into the runes like tendrils, trying to grasp how they operated. The energy within flowed like a mighty river, surging endlessly onward. The moment his spiritual sense entered, that river swept it apart, leaving him unable to draw any closer.
Undeterred, Lin Feng sent his spiritual sense in again and again, only for it to be swept apart each time. His face grew steadily paler, fine beads of sweat formed on his forehead, and the veins at his temples throbbed, but he refused to give up. He knew this was his only chance.
Time trickled by. There was no sun or moon in the cultivation chamber, and Lin Feng had no idea how long had passed. His spiritual sense was repelled by the runes again and again, yet he kept sending it back in, penetrating a little deeper each time. Gradually, he grasped how the runes operated. They formed an enormous formation, whose core lay beneath the stone platform.
Finally, after countless failures, his spiritual sense pierced the barrier of runes and entered the formation.
In that instant, he seemed to see an ancient formation with a fist-sized crystal at its core. The crystal