This corpse energy is very special; it's not inherent to this broken jade, but rather absorbed from the surrounding aura and then exhaled. Once it attaches to someone, it lingers for a long time.
Ordinary sealing measures are completely ineffective against it.
Even though Li Zhiyuan had done thorough preparatory work, he made a point to pause before entering Lijiang to reinforce the array based on its reactions.
Yu Xuzi, who had studied the Daoist Field within that array for hundreds of years, helped Li Zhiyuan greatly here.
Now, the broken jade in the wooden box had turned black and subtly flowed, yet it couldn't be activated.
This also means that Li Zhiyuan and his party, who should have been in the light, were now in the dark.
If someone showed up with this aura on them, it would be like a zombie jumping in broad daylight; anyone part of this wave wouldn't be amateurish and would certainly detect it.
