A Seal

"Yu Yi's here," Cai announced.

Shi Mu was a little shocked. Their lava pool was underground, yet Cai could not only see all the way to the entrance of the cave but even determined who that visitor was. This meant that after its deep slumber, Cai's visual prowess had undergone some kind of mutation once more, allowing it to see even through the earth.

A few moments later...

Upon entering their cave, Yu Yi produced a Storage Ring in his hand. "Brother Shi, the number of Spirit Stones accumulated over these three months was about five million and six thousand. As you requested, I exchanged about eighty percent of them for Fire Attribute Spirit Stones."

Standing close to the entrance discreetly, he was now wearing a blue robe with silk embroidery—not a sign of the destitution that had plagued him three years ago in sight. It was quite plain to see that he too had come to enjoy some degree of comfortable living.

"Why thank you, Brother Yu!" Shi Mu replied, taking the ring.