The four of them looked in the direction of the voice and saw that the Immortal Crystal in Lu Feng's hand was indeed rather unusual.
At this moment, Celestial Immortal Xuanling spoke up, replying, "This item is a top-grade Immortal Crystal. Immortal Crystals of this caliber can only be used by those lofty Immortal Monarchs and Immortal Kings; we have no way of obtaining them!"
"A top-grade Immortal Crystal? I see!" Lu Feng stroked his chin, a look of deep thought crossing his face.
Chapter 273