When Ye Zhen's divine sense entered the Thunderous Dragon King's Storage Ring, the first thing that caught his attention was a Black Dragon Command Flag. However, this Black Dragon Command Flag differed slightly from those possessed by the Dragon Alliance's Seventy-Two Envoys.
The Black Dragon Command Flags of the Seventy-Two Envoys were all ordinary flags, but this one was embroidered with golden trim. More importantly, it exuded an extremely dense and powerful Black Dragon aura.
Ye Zhen made a rough estimate. The Black Dragon aura contained within the Thunderous Dragon King's Black Dragon Command Flag was five times that of the Black Dragon Command Flag held by the White Dragon Envoy.
At least five times!
The corners of Ye Zhen's mouth lifted into a grin. With this gold-trimmed Black Dragon Command Flag, along with the six ordinary Black Dragon Command Flags he had obtained earlier, he reckoned that another portion of the seals on the Black Dragon Martial Vein within his body could be unlocked.
The more of the Black Dragon Martial Vein he unlocked, the greater Ye Zhen's control over it would become, and the safer he would be.
This gain alone made it worthwhile!
It had to be said that the wealth of a ninth-layer Palace Opening Realm King was truly extraordinary.
There were not many Mid-grade Spirit Crystals in the Thunderous Dragon King's Storage Ring, only a little over three million. But the shocking part was that there were actually more than eighty thousand High-grade Spirit Crystals.
One High-grade Spirit Crystal was equivalent to one hundred Mid-grade Spirit Crystals. Eighty thousand High-grade Spirit Crystals were equal to Eight Million Mid-grade Spirit Crystals.
What surprised Ye Zhen even more was that the Thunderous Dragon King's Storage Ring also contained a considerable quantity of Top-grade Spirit Crystals and Attribute