As the Thunder Sea gradually lost its effect on him, Zhou Changqing had been worrying about where to find lightning that could transform his body and bring it to the Dou Zong level.
After all, the lightning within the Thunder Sea was already no weaker than heavenly thunder.
Finding lightning even more powerful than heavenly thunder was an exceedingly difficult task.
If luck failed him and no opportunity came his way, his physical strength might remain at the peak Dou Emperor level for a long time.
But now he no longer needed to worry. The lightning energy accumulated inside the thunder-magnetic mystic crystal over a hundred years had undergone a qualitative transformation, becoming even more formidable than heavenly thunder. It could certainly help his body advance another step!
Moreover, the thunder-magnetic mystic crystal itself was an excellent material.
Once he exhausted its lightning energy, Zhou Changqing could use the mystic crystal for weapon refining.
He could already imagine how powerful a weapon forged from material of this caliber would be!
Of course, it was still too early to discuss that. There was only one mystic crystal, and Zhou Changqing would not use it for weapon refining until he had absolute confidence.
I'll get myself into peak condition first, then attempt to break through to the next physical realm.
After examining the thunder-magnetic mystic crystal for a while, Zhou Changqing made his decision.
Then he picked up the two scrolls and headed toward the edge of the Thunder Sea with the thunder-magnetic mystic crystal.
At the spot where he had originally entered the Thunder Sea, Zhou Changqing found his Storage Ring.
After placing both scrolls inside the Storage Ring and putting it on, Zhou Changqing did not store the thunder-magnetic mystic crystal in it as well.
The energy this thing radiated