Upon entering the second floor, Yuan found himself in a vast research room with hundreds of Alchemists bustling about with scrolls and medicine in their grasp.
Yuan, still in his Shadow Veil, walked around like he owned the place. Due to how busy and focused everyone there was, Yuan was able to investigate the whole floor without any issues. Hell, he could even do jumping jacks in front of someone and they still wouldn't notice him.
It was almost as if Shadow Veil's effect was similar to the Celestial Emperor's curse, where it naturally made everyone oblivious to Yuan's existence.
This level of concealment was heaven-defying, and if the world knew of its existence, there would be wars to acquire it.
Through his observations on the second floor, Yuan quickly realized that everyone there was engaged in the process of creating new pill recipes. He also noticed that the recipes being developed were relatively basic, ranging from Tier 1 to Tier 2.