Immortal Venerables have practiced for vast ages and possess immense experience. Most of them have encountered methods of imitation before, though none as bizarre and sophisticated as these gold-purple insects. Still, there are ways to see through such deceptions, provided one has more information about the creatures.
However, that is precisely what they lack.
Thus, when Shen Ping proposed a suggestion, the eyes of the high-level Immortal experts like Immortal Venerable Nanji and Immortal Venerable Qi all turned toward him.
Chapter 395