After the child's mind was read, the tyrant caught the male queen with a black face

Yuan Ruan tilted his head in confusion: "Crushed stone? Can you crush rocks by burning them?"

The doctor of the Du Shui Division bowed confidently and said, "Yes! This is a method that has been passed down since ancient times, and I have improved it a bit..."

At this moment, bursts of dense drum beats suddenly appeared from below.

The doctor of the Du Shui Division paused, looked outside, and then said, "Master Imperial Master, please look, the burning of the stones is about to begin."

Yuanruan looked out again.

Then, strong men with bare upper bodies came over carrying vats full of black oil.

These strong men were divided into several teams. One team carried the jars to the highest point and poured the black kerosene on the top of the boulder. Another team poured the black kerosene directly on the firewood. Another team was responsible for checking for leaks and pouring some black kerosene on the leaked areas.

When the strong men stood far away, they heard the drumbeats again, but this time it was a heavy beating with a slow rhythm.

"Bang! Bang! Bang!"

Three clerks holding torches came over, and when one of them climbed up the tree, he shouted, "Light a fire!"

Then he dropped the torch onto the top of the rock.

After the man climbed down the tree, the other two also started to move. One threw the torch to the pile of firewood on the left, and the other threw it to the pile of firewood on the right.

In an instant, a huge rock fireball appeared in front of everyone with a "bang", thick black smoke rushed into the sky, and wave after wave of heat swept over.

If the system hadn't reacted quickly and used wind to blow the smoke outside, everyone would have been coughing for a long time.

Yuanruan took several steps back due to the heat, and this allowed him to see the full view of the burning rocks by the river.

The flames on the shore and on the river surface complement each other, as if a group of fire elves suddenly appeared in a landscape painting without disturbing each other. It was abrupt but also very beautiful and dazzling.

Yuanruan originally thought that watching the burning rocks would be boring, but unexpectedly, he was attracted by the scene below.

On the one hand, the men below are busy adding firewood, adding fuel to the fire, and trying every possible way to throw torches. From a high vantage point, it really does have the flavor of an infrastructure game.

On the other hand, this huge flame spirit, with its bright red color when in its prime, its bluish-red color when in decline, and its scarlet color blinking in the ashes when about to end, has its own beauty in every stage, making Yuan Ruan unable to take his eyes away.

After an hour, the flames gradually died down.

Yuan Ruan suddenly understood why the poet was so inspired to write poetry. If she hadn't been so incompetent in literature, she would have written at least two poems instead of just muttering: [Frog fun, it's really beautiful.]

System: [Yes.]

At this moment, the clerk in his clothes suddenly shouted, "Open the gate!"

This loud voice instantly attracted Yuan Ruan's attention.

She looked closely and saw several strong men with bare upper bodies striding upstream for about dozens of meters. Then they moved a few stones. Then, the rushing river water poured down along a man-made channel. In an instant, the red and black boulders made a "sizzling" sound, and bursts of thick smoke came out.

Immediately afterwards, several strong men carrying large vats on their backs came to the boulder and kept pouring dark brown stuff into it.

Yuan Ruan pointed there curiously and asked, "What is being poured in?"

The doctor of the Dushuisi said, "My Lord, it is crude vinegar. It is also a small discovery of mine. Pouring water cooled by vinegar on stones can make them more fragile."

Yuanruan exclaimed: [Tong'er, this guy is amazing, a natural chemist?! ]

System: [Yeah. It has some use, but it doesn't matter if it doesn't. It's mainly because the stone expands and contracts due to heat after it is burned and encounters cold water, which causes the stone to appear...]

The doctor of the Du Shui Si had always been very proud of this small change, but when he heard this, his straight back bent a little.