Lin An, though she had lost her mana, her physical strength hadn't vanished, and the icy cold water of the stream didn't affect her much.
Su Chengyu, having refined all the toxins and swallowed a few elixirs, had recovered eighty percent of his mana when he suddenly heard Lin An's scream. He immediately opened his eyes, grabbed the Dragon Slayer Sword, and flew towards the source of the sound.
"Su Chengyu, save me!"
Su Chengyu arrived at the edge of the pool and saw Lin An, stark naked, coiled up by a python that was opening its mouth wide, ready to swallow her whole.
"Evil beast! Begging for death!"
Su Chengyu leapt forward, and with one stroke of his sword, he beheaded the python.
The python was merely a minor beast in the realm of cultivation, and Su Chengyu easily slew it.
With its head lost, the python's body, which had been coiling around Lin An, also lost its strength and unraveled, allowing Lin An to fall, caught by Su Chengyu, who then flew back to the bank.