Chapter 1757: Saving People

Previously, Zhang Tie didn't know what was the optimum combination of a rarity and a secret method. But now, he knew. 

His invisible shen bead and the master-level hiding skill was such an optimum combination in effect. 

With an independent invisible shen bead or an independent hiding skill, Zhang Tie was not confident to pass by two immortal generals in front of them without being discovered. However, after combining the two things, Zhang Tie turned impossibility into possibility. 

When he passed by the two immortal generals, Zhang Tie suddenly thought about killing the two guarding immortal generals; instead of saving those captives of Yin-Yang Sect at the bottom of the airboat. Such skill of sneaking to the side of one's opponent and giving him a sudden fatal strike was simply the skill that all the assassins and killers were dreaming of. 

It was out of Zhang Tie's imagination that he had such an amazing ability.