In front of Xiao Yi and the others.
A giant cauldron of oil stood there, with thousands of blue-faced demons carrying in dry bones one after another.
The dry bones were thrown into the cauldron.
The blazing flames consumed them.
The dark green fire was particularly eerie.
Inside the cauldron, the grease was boiled by emerald flames, with large bubbles emerging on the surface, then bursting explosively.
The flying oil splattered everywhere.
Anyone touched by the flying oil felt a scorching pain on their skin, a searing agony as if their soul was being burned.
The blue-faced demon looked at them.
His face devoid of expression, he said calmly, "In this trial, you must endure being tempered in the oil cauldron for forty-nine days. Only after being tempered for forty-nine days, without a single inch of skin being scorched, can you pass successfully!"
This was also the ninth layer, the Oil Cauldron Hell trial, a place that delayed many powerful individuals from advancing.
