Boom!
The earth trembled, and the sound of the explosion was deafening. Although Iron Essence was rare, in the end it was only a material. How could it withstand a single blow from Lin Xuan?
A pit roughly a zhang across appeared in view. Then Lin Xuan flicked his sleeve, and a sweep of rosy light rolled over the surface. The scene ahead blurred for a moment.
Several stone pillars appeared eerily.
"As expected..."
A glimmer of understanding appeared in Lin Xuan's eyes, while the Palace-Robed Woman beside him was somewhat surprised. "Senior, what is this?"
"Hmph, nothing but an array. That old monster Poison Dragon is even more cautious than I imagined. Outside the cultivation cave, he sealed it with a thick Iron Essence ore vein, then set up an array inside. That way, spiritual energy would not leak out. This old monster truly racked his brains."
Lin Xuan's expression remained calm on the surface, but inwardly he was quite delighted. All sorts of signs indicated that he had indeed made no mistake. The secret cultivation cave was definitely here.
He focused and carefully examined the stone pillars before him. They were very clearly arranged in the shape of the Big Dipper. The patterns on their surfaces were mottled, and the runes carved into them were strange and bizarre. Moreover, the entire surface of each stone pillar was inlaid with many unknown ores, their dim lights flickering. Their textures were all different, and Lin Xuan actually did not recognize most of them.
Lin Xuan could not help knitting his brows tightly. He truly had never seen this kind of array before. That was not strange. Among the hundred arts of immortal cultivation—arrays, talismans, medicinal pills—which one was not vast as the sea? Although Lin Xuan had dabbled in all