This is a black metal plate with rust on the surface and some moss plants on it, which feels smooth and greasy to the touch. I knocked it gently, and the board was extremely thick and I don’t know what it was for.

Seeing that I kept staring at the top, Lao Ma and Fatty Li also came over. Fatty Li said, "Old Qin, what are you looking at?" As he said that, he raised his feet and tried hard to get up.

"There is a metal plate here. It looks a bit old. I don't know what it is for." I replied.

"Is there any pattern on it?" Lao Ma seemed to have thought of something.

I heard him say this and looked at it carefully. There was no pattern in this black piece. I scratched it with my fingers. After that, I suddenly felt that the surface was indeed a little uneven, so I immediately said to the bottom: "It seems... it seems that there is something, but there is too much moss on it, so I can't tell what it is."

"You...you come down quickly, I'll take a look." Lao Ma urged impatiently. Fatty Li and I looked at each other, but we didn't know what he was selling in the gourd.

After Lao Ma stood up, he stared at the board with me for a while, then he pulled out the dagger at his waist and began to scratch it. His dagger moved along the lines above, scraping out the mud and moss embedded in the gullies of the lines.

The entire large iron plate had a radius of nearly half a meter. He cut it bit by bit with a knife. It took him five minutes before he scraped out a small piece the size of a palm.

Fatty Li was impatient and said to him: "I said Lao Ma, what are you doing? You are not carving your portrait."

Lao Ma ignored him and continued his work.

Fatty Li and I were very bored, so we finally lay on the ground and took a nap.

I don’t know how long it took, but Lao Ma suddenly screamed: “I have it! It’s him!”

I was shocked by his throat in a daze and sat up. Fatty Li also woke up and rubbed his eyebrows: "What's wrong?"

Lao Ma excitedly pointed to the pattern on the metal plate and said, "We are saved and can go out."

I looked at the pattern, densely covered with metal plates. Not to mention that it looks familiar, but I really can't remember where I have seen it.

Fatty Li recognized it at a glance: "This...isn't this the pattern on the relief under the Hezu Stone Statue when he first came in?"
Chapter completed!