As the entrance to the valley gradually drew nearer, Luo Yan noticed a faint, almost imperceptible smell of rust in the air he breathed in.
He circulated his cultivation method, condensing a layer of dark-red Mystic Light over his body. At once, the smell of rust in the air vanished.
Only then did Luo Yan confidently step into the miasma.
His vision immediately turned gray and hazy.
But this posed no difficulty for him. As golden light surfaced in Luo Yan's eyes, his vision suddenly cleared.
The world also turned into two colors: black and white.
After activating his Divine Treasure, information continuously surfaced in his vision.
This allowed Luo Yan to learn that the miasma in the valley contained plant spores and fragments of mycelia.
Besides making people smell rust, these things could also enter the body through the respiratory tract.
The plant spores would take root in the human body, eventually developing into mutated plants that coexisted with the body and caused humans to mutate.
Even wearing a respirator could not completely block the plant spores.
Only by wearing a full-body hazmat suit and preventing the skin from touching the miasma could one avoid them.
This was also why the Western Cult's Exploration team had been wiped out.
However, these spores posed no threat at all to cultivators in the Profound Comprehension Realm.
As long as they circulated their cultivation methods, the spores would be destroyed by the blazing Mystic Qi light of the Profound Comprehension Realm, rendering them inactive even if they entered the body.
As for someone like Luo Yan, who was at the middle stage of the Mystic Abyss Realm, he could already condense Mystic Light over his body and was completely immune to all poisons.
All suspicious substances were blocked and destroyed by the