Finally, Lin Jin figured out the answer to the question.
Blood pact.
The key was in their blood pact.
Beasts who had formed blood pacts couldn't turn into monsters and it was the same the other way around. Monsters couldn't form blood contracts with humans. This was a fact clearly written in the Museum of Deadly Beasts.
As Lin Jin knew about the Beast Energy Formation as well, Shang'er's hesitance faded away. She made up her mind and agreed to show Lin Jin the temple deep inside the mountains.
However, they had to wait until Little Nine made a full recovery.
Lin Jin estimated that the foxes' level of cultivation for the Beast Energy Formation had exceeded part three. At the very least, Beast Energy Formation Part Three was no longer useful for Shang'er.
