As for the last vestige of deathly and Yin Qi, it came from nowhere else but the final ninth Undead Boss.
"Damn it, to do or not to do? It seems there's a Secret Realm forming below, and once it takes shape, every living being within ten miles will be instantly sucked in. Fail to clear it and you can only die inside."
A Secret Realm is even more dangerous than an instance, yet high risk also means high reward.
Cultivation Techniques, treasures, resources, can all be obtained from a Secret Realm, especially one within the Sea of Realms.
As Lord Zi hesitated, the final great tomb shook on its own.
The burial site trembled, as if a dragon were turning over beneath the ground.
Inside the grave, the coffin lid was slowly pried open from the top, a headless shadow, with muscles on its pitch-black arms bulging, grabbed the front and back of the coffin lid with each hand to balance and prop it up.
