Excuse me, what is the chapter in Jin Yong's novel "The Condor Heroes" where a black iron epee is written? What's the explanation about the Three Swords?

Chapter 26: Yang Guo, the giant eagle epee, lifted the first sword to the right, and saw two lines of fine print engraved on the stone under the sword:

"Brave and invincible, used to compete with Heshuo before the weak crown."

When I looked at the sword again, I saw that it was about four feet long and shiny green. It was a sharp weapon. He put the sword back, and a long stone appeared. I saw two lines of fine print engraved on the bluestone under the stone tablet:

"Wei Zi soft sword, used before the age of 30, was unlucky and accidentally injured, but it was abandoned."

Yang Guo thought, "There is a sword missing here. It turned out that he abandoned it. I don't know how to accidentally hurt the righteous. Most of this story will never be known. " After a while, I reached for the second sword, only a few feet. With a whimper, my hand fell off and hit the stone, sparking, which startled me.

It turns out that the sword is black, but it is heavy. A sword more than three feet long, weighing 70 to 80 kilograms, is several times heavier than the heaviest golden knife spurge in the war. Yang Guo mentioned how to get it, but his hand sank and he couldn't hold it. So I bent down and got up again. This time, with preparedness, it is not a matter of course to pick up heavy objects as high as seventy or eighty kilograms. Seeing that the tips on both sides of the sword are blunt and round, like a hemisphere, I thought, "This sword is so heavy, how can it be flexible?" Besides, it's strange that the tip of the sword doesn't talk. "

Looking at the stone carving under the sword, I saw two lines of fine print:

"Epee without front, Da Qiao work. Before I was forty years old, I used it to run the world. "

Yang Guo murmured the words "epee without front, daqiao ineffective", and seemed to realize something in his heart, but he wanted to fencing all over the world. No matter how different the school changed, he always put light spirit and quickness first. I don't know how to make this heavy hilt, and I want to be pregnant with yesterday's sage, so I can't help but be lost for a long time.

It was a long time before I put down the epee and went to get the third sword. This time, I was cheated again. He only said that this sword must be heavier than the previous one, so he lifted it with his left arm. That know in your hand is light muddy, such as nothing, at first glance, turned out to be a handle wood blade, many years have passed, the hilt has decayed, but see the sword of stone carving way:

"After forty years old, don't indulge in things. Plants, bamboo and stones can all be swords. Since then, intensive training has gradually progressed to the realm that no sword is better than a sword. "

He respectfully put wood blade back in his place, sighed in awe and said, "The skills of our predecessors are unimaginable."