Actually, what Zhang Chen desired most was the skill dropped by the Twelfth Tier of mystery, but unfortunately, he didn't gain anything, for some reason, that Twelfth Tier of mystery didn't drop any skills.
"Why didn't the Twelfth Tier of mystery drop any skills? There must be a pattern to the mysterious skill drops, but unfortunately, I haven't found that pattern yet," Zhang Chen thought to himself.
Zhang Chen rummaged through the ruins and harvested millions of experience points, feeling quite satisfied. These millions of skill points were enough for him to upgrade significantly, and at the very least, he should be able to leave that large formation without any issues.
"Perhaps I can seize the opportunity to approach the core of that formation; maybe there's still some mystery left in it, or at least there should be some experience points." Thinking of this, Zhang Chen was about to turn away, but unexpectedly, his pupils shrank as a vague figure emerged in the dawn.
