Gu Yue Ling

Chen Feng had two grounds for his conjecture.

First, the wings were blue-black, the same color as the Lightning Yuan Stone after it was charged.

Second, the wings had formed after the Flying Lightning Rat absorbed the Lightning Yuan Stone's energy.

Of course, neither of these grounds was particularly reliable. They could only serve as supporting evidence.

To truly confirm the connection between the wings and the Lightning Yuan Stone, he would need further experiments, as well as tests on the stone itself.

Testing the Lightning Yuan Stone, however, was difficult, because this was Douluo World, and it was still the era of Douluo Dalu 1.

Chen Feng had once tried cutting open a Lightning Yuan Stone to examine it, but the cross section was smooth, with nothing special about it, just like an ordinary stone that had been cut open.

Back on Earth in his previous life, Chen Feng could have used all sorts of instruments to analyze and test the Lightning Yuan Stone, but that was impossible here.

Fortunately, after some thought, Chen Feng did come up with a workable method.

He could use Purple Demon Eye to examine the Lightning Yuan Stone.

More precisely, Purple Demon Eye at the mustard seed realm.

Purple Demon Eye had four levels: panoramic, micro, mustard seed, and boundless. At the panoramic realm, it could greatly enhance vision and clearly capture every detail.

Both Chen Feng's and Xiao Wu's Purple Demon Eye were currently at the panoramic realm.

After entering the micro realm, Purple Demon Eye allowed its user to see more clearly and perceive richer detail. It relayed everything before them to their nerves in slow motion, allowing them to react in the shortest possible time.

Tang San's Purple Demon Eye had already broken through to the micro realm. Because he