Xia Fei was very careful. As an expert of the assassin lineage, Xia Fei knew that an enemy who could conceal their aura to such a subtle level was very powerful.
After all, this was the Law Realm. While killers used essentially the same methods of concealment, approaching the target, and killing, they could not be taken lightly.
Xia Fei's Breath Control and Crafty Approach had both been modified by himself and were many times stronger compared to the initial techniques that had been passed down to him by the Assassin Sect. However, Xia Fei did not know if these skills could overcome an expert murderer of the Law Realm.
The plan was very simple. Since he was dealing with a murderer, Xia Fei would return the favor. It was time to see who had the better cultivation, had the better strategy, and was the more restrained.
