As the Heavenly Poison Prison Realm took shape, Yan Luotian and the others behind Little Fairy Doctor swallowed the pills they had prepared in advance.
These pills had been given to them by Little Fairy Doctor and could temporarily render them immune to the surrounding deadly poison.
However, the natural energy within the prison had already been completely contaminated by the poison. Fighting here, they would be unable to absorb natural energy from the outside world to replenish themselves.
Yan Luotian and the Three Mulan Elders did not care about this drawback.
After all, they had two Dou Zong powerhouses, plus three people working together with strength comparable to a Dou Zong. Three Dou Zong-level forces surrounding a single Dou Huang would not take long to win.
Cai Lin, whom Xiao Yan had pushed out of the Heavenly Poison Prison Realm, steadied herself and glared angrily at the distant grayish-purple space, her heart filled with worry.
Grayish-purple mist spread across the edges of that distorted space, making it seem as though a transparent glass barrier had sealed off everything around it.
Within lay a terrifying world of poisonous gas that formed its own separate pocket of space.
Blocked by the spreading grayish-purple poisonous mist, even Cai Lin could not see what was happening inside.
Even when she tried to scan it with her senses, the distorted space repelled her.
Thus, no one, Cai Lin included, could learn the slightest thing about the battle within.
They could only wait for the battle to end and the prison to open.
As she gazed at the grayish-purple space in the distance, the fury on Cai Lin's beautiful face gradually gave way to grave solemnity.
She wanted to break it open herself, but the terrifying poisonous mist inside would inevitably spread once the prison