The cave dwellings in the Alchemy Division were well protected by enchantments, but they weren't this strong! Even him, a Golden Core stage teacher was unable to open it. That really annoyed him!
In addition to the two students who led the way here, a few more students from the Spirit Division had come along as well. They looked on in shock when they saw that Teacher Lu was unable to break open the enchantment.
Feng Jiu had the ability to strengthen the cave dwelling enchantment to this degree? Even the Golden Core stage Teacher Lu was unable to break it open? Their mouths twitched as they also wanted to ask: Is he keeping out a thief or an assassin?
In actual fact, Feng Jiu only strengthened the enchantment because she was afraid that there would be too much noise from her refining pills. As for the soundproof enchantment, she had just wanted a good night's sleep. Who knew there would be so many people looking for her early in the morning?