Chen Fei was full of surprise. He had never expected the cauldron ear's function to be producing Rule Crystals.
If it could produce Rule Crystals, then after Chen Fei broke through to the seventh rank, its value might be relatively low to him. But to the Yuan Chen Sword Sect, and to the entire human race, its value would be immense.
Chen Fei carefully examined the embryonic Rule Crystal inside the cauldron. A moment later, his brows furrowed slightly. He seemed to have been somewhat too optimistic.
The cauldron ear was indeed absorbing World Vital Energy and producing Rule Crystals, but the speed was astonishingly slow.
Perhaps when the Bronze Cauldron had been whole, it could have produced Rule Crystals extremely quickly. After all, it had been an eighth-rank supreme treasure. But now, only one damaged cauldron ear remained, and both its functions and capabilities had fallen by a great deal.
Saying that less than one-tenth remained might even have been giving it too much credit.
Chen Fei roughly calculated the rate at which the Rule Crystal was condensing within the cauldron. Without intervention, it would take over a hundred years to produce roughly one Rule Crystal.
For a sixth-rank race like the human race, they would certainly be more than happy to automatically harvest a Rule Crystal every hundred-odd years.
If it continued for several thousand years, that would amount to dozens of Rule Crystals—a tremendous fortune.
But for Chen Fei, obtaining one Rule Crystal after more than a hundred years was far too slow. His own daily cultivation speed already surpassed that. Why would he need the cauldron ear to produce Rule Crystals?
Chen Fei tried placing ten thousand Low-grade Spirit Crystals into the cauldron. As the Bronze Cauldron trembled faintly, the speed at which it produced Rule