The boy stood still, not moving, just staring at the surface of the water and thinking quietly, carefully recalling the circumstances of the previous discovery of the object.

"I remember stepping on it in a hurry, so that the mysterious object would have sunk deeper into the mud, and it seems to have been encountered once the first time I went ashore, and I noticed it when I kicked my legs back. ”

"So, if I'm not mistaken, the mysterious hard object was still under the mud, just buried a little deeper, a little further inside. ”

Thinking clearly in his heart, Pang Yuan's confidence increased greatly, and he immediately took action, holding his breath and entering the water, and groping deeper into the mud along the previous position.

It turned out that the teenager's thinking was not wrong.

This time, it didn't take long, and soon, Pang Yuan, who was reaching out and groping in the thick soft silt, touched the unfamiliar object again.

The object was cold to the touch, the material was extremely hard, the hands pressed down vigorously did not change at all, and the angularity was so sharp that the shape of the whole object seemed to be a cuboid box to the touch.

"That's what it should be!"

The characteristics of the items found this time are roughly consistent with the young man's previous feelings, it seems that eight or nine are not far from ten, Pang Yuan was happy in his heart, and he forcibly suppressed the excitement in his heart, and was ready to take it ashore to see it clearly.

Holding this harvest tightly in his arms, Pang Yuan first leaned on the side of the shore and stood firmly, and then climbed up from the small waterhole and stepped on the dense grass on the shore.

And the old turtle that was harvested before was crushed by the stones, and its four little claws were moving, still struggling meaninglessly.

Anyway, he couldn't run, Pang Yuan didn't have the heart to care about it, sat down next to the old turtle, and carefully looked at the mysterious items that were salvaged this time.

Holding in the hand of the young man is a pitch-black iron box, deep in color, without a trace of variegation, carved with a relief of the beast's head, mysterious and simple.

The iron box is not large, the material is hard, the touch is cold, and it is completely sealed, tightly sealed, difficult to enter by splashing water, and has good waterproof performance.

"Is this mysterious tin box the bones of the previous corpse? After all, they are all buried together. ”

"Looks like there's something hidden in this tin box. ”

Pang Yuan looked at the mysterious iron box in his hand curiously, and tried to open it with both hands, but the iron box was sealed very tightly, and the young man's efforts were completely useless, and no matter how much strength he tried, it was in vain.

The boy held up the tin box and shook it vigorously in his ear, trying to hear what was going on inside to determine what was inside.

But to Pang Yuan's disappointment, the iron box was reinforced, the thickness was large, and the items inside might have been placed very tightly, shaking vigorously, even the slightest sound was not heard by the young man.

"This iron box is made of fine iron, the workmanship is so exquisite, and it is so tightly hidden, is there really any treasure in it?!"

After some efforts, there was no way to take it, Pang Yuan not only did not lose heart, but became more interested, and desperately wanted to open the iron box.

Looking at the iron box in his hand, the young man frowned a little for a while, this iron box is so strong, tightly sealed, and the knife and axe are difficult to hurt, even if he throws it the ground, I am afraid that it will be difficult to use brute force to crack it.

On the other hand, the items inside seem to be of great value, and Pang Yuan is also worried that violent beatings may damage the objects inside, or the mechanism for opening the iron box will be completely destroyed, and in the end it will never be opened again, and the gains outweigh the losses.

So, after thinking about it, he finally decided to find another way to crack it.

"Well, what is this?"

Pang Yuan sat cross-legged on the grass, flipping the sturdy iron box back and forth, observing every texture crevice on it, looking for possible clues.

Looking at it this way, it really gave him a new discovery.

After turning the small tin box over, the boy found that on the other side of the surface, there was a part of the tin box that was not completely smelted together.

Pang Yuan was in a hurry to try to open the iron box before, but he didn't notice this.

On the thick iron plate on this side, a small square area is recessed, which is divided into sixteen square iron blocks of the same size, one of which is hollow and has a thin groove inside, which looks particularly abrupt compared to the rest of the square area.

There are various lines on the surface of the other fifteen small square iron blocks, more or less, revealing a different meaning in one horizontal and one stroke, either heavy or elegant.

Could it be that the lines on it have a special meaning, or do they contain clues to open the tin box?

Pang Yuan couldn't help but have such a thought in his heart, in his opinion, the lines on it must not be as simple as carving them at random, maybe there is some secret in it.

Staring directly at the various lines on the many small pieces of iron in front of him, the young man's thoughts were scattered, secretly guessing their meanings in his heart, looking for the magical laws contained in them.

stared at it for a while, his eyes were a little sour, Pang Yuan still had no clue, but he was thinking haphazardly in his mind, and he was a little distracted.

The young man came back to his senses, stretched out the back of his hand, gently rubbed his slightly sour eyes, and exhaled a deep breath of turbidity, the fresh air mixed with the fragrance of plants and trees, which cheered up Pang Yuan, who had failed in one after another attempts.

Pang Yuan looked at the fifteen small pieces of iron in front of him, and the fat and thin lines on them were deeply engraved in them, with different shades and different directions.

The boy couldn't help but stretch out a few fingers and press them on it, slowly moving along the lines and textures on the iron.

"Click~"

The faint sound of iron grinding came to the ears of the pensive boy.

The friction sound was extremely subtle and difficult to detect, but in the ears of Pang Yuan, who was concentrating at this moment, it was like a thunderclap!