It used to take one or two days.
It doesn't even take an hour now.
Boom—
Before long, he refined the magic rune of the first tomb, and he felt a sense of closeness to the tomb.
It seems that some of the formations and even some of the demonic energy can be used.
However, he tried, but still couldn't get close!
"Forget it, we can explore the mysteries of these tombs later. If I could refine the corpses of these Heavenly Demon Emperors into avatars, and even seventy-two avatars at the Immortal King level, the Immortal Emperor would have to give me some respect, right? This Heavenly Demon Tomb is simply the most precious of treasures!"
Guo Feng wasn't too disappointed, since the Heavenly Demon Tomb would be his after the refining process.
There is ample time.
Without hesitation, he flew directly to the next tomb.
This time, however, there were no obstacles. These Heavenly Demon Emperors were all about the same; their immortal consciousness at the ninth rank of Xuanxian was enough to refine the demonic talismans here.
Little did he know that this was entirely a coincidence, because the Heavenly Demon Tomb was undergoing a tribulation of heavenly lightning in order to evolve into a so-called mid-grade immortal artifact. The Heavenly Demon Tomb had mobilized a great deal of power to fight against the heavenly lightning.
Otherwise, let alone a ninth-grade Xuanxian, even a ninth-grade Daluo Jinxian or Shengxian might not be able to get close.
Three days later...
December 25th!
"All seventy-two tombs, refined them all. The Heavenly Demon Tomb is now mine!"
Guo Feng refined these tombs one by one, and immediately, all the information about the Heavenly Demon Tomb flooded into his mind.
The Heavenly Demon Tomb no longer rejected him.
The terrifying array outside the tomb no longer posed a threat to him.
The billions of demons inside all acknowledged him as their master.
Rumble, rumble—
However, at that moment, all the demonic energy inside the Heavenly Demon Tomb suddenly surged outwards.
Billions of demons rushed out, transforming into thousands of demonic arrays to resist the final heavenly lightning!
This Heavenly Demon Tomb is about to evolve into a mid-grade immortal artifact!
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