"Golden Silkworm Gu?"
The old man's eyes lit up, and then he looked at Shen Qiang with a smile, "Young man, if you don't understand, don't pretend to. This Iron Wire Gu, although not a rare and exotic treasure, is formidable because it is as fine as a hair and can be hard or soft."
"When soft, it can disappear with the wind, dissipating any external force. When hard, it is as firm as a rock, as tough as fine steel. If your teacher is wise, he would teach you how to guide the Iron Wire Gu out of a patient's body."
"But he would never tell you that this Iron Wire Gu can kill."
The old man sneered, "Because that is simply impossible. The Iron Wire Gu is the sword among all Gus, capable of easily killing any other Gu."
"Naturally, this includes the Golden Silkworm Gu."
Shen Qiang laughed, "Are you sure? A mere iron wire dares to be called a sword?"
