C494 Silver Needle Test for Poison!

Ninth Master Wu swiftly moved to shield Yuvyuv. Taking advantage of the moment, Yuvyuv quickly placed a silver needle on Yufei's chest.

In less than a second, the needle turned half black, exuding a toxic aura. Old Hall Master Faang was stunned.

Yuvyuv held up the half-blackened needle for Old Hall Master Faang to see clearly, her voice clear and resonant, "Have you ever heard that in the past