Bai Xiaochun's eyes went wide. Just when he was going to go over to examine Shadow closer, Shadow suddenly leapt to his feet, howling as he transformed into a mist. Screaming, he burst out of the immortal's cave. Bai Xiaochun hurried out after him to find that the gargoyle had seemingly gone mad. He was running around, jumping up and down, sometimes collapsing into a shapeless mist, other times coalescing back into form. After a bit of time, he once again collapsed on the ground.
From that moment on, whenever he looked at Bai Xiaochun, profound fear could be seen mixed in with the intelligence in his eyes....
Things progressed like that for about half a month. Bai Xiaochun worked hard, and the tier-4 Undying Blood Pill slowly began to take form. He was already able to make pills with three streams of blood qi, and was on the very cusp of being able to produce four.