But as soon as there was noise, Master Zhu coughed, and the noise immediately subsided.
"Father-in-law, may I look?" Li Yuan gazed at the stern-faced middle-aged man in front of him.
Master Zhu did not answer, but directly said: "Observing fire must penetrate to the marrow, a little more or a little less, and it all fails.
The step you are missing lies in observing the fire;
Because for the knife you forged, the fire has not yet penetrated the iron's marrow."
"Penetrate the iron's marrow?"
"Heat it to every millimeter, every inch, so not even the core of the iron is missed, only then is the hammering effective."
Saying this, Master Zhu took a knife from the weapon rack beside him and said, "This is also a Ninth Grade Blade, try clashing them."
Li Yuan complied, took the knife, and the two clashed.
After some strikes, just as expected, his forged knife broke first, while the other knife, although chipped in many places, remained solid inside.
