Amin wasn't too upset when he learned that the trebuchet had been destroyed by the fortress. This time it was just a small experiment, and next time he would use a dozen, dozens of trebuchets. At that point, it doesn't matter if the defenders of the fortress find out.

As long as each trebuchet could throw a powder keg, he earned, and half of the powder kegs hit the target, and he didn't believe that the fortress could hold it.

Just when he was complacent, Goshha outside ran in in a panic.

"Lord Belle! A demon spell appeared on the fortress, illuminating the ice surface of Beixinkou as bright as day. ”

"Impossible!" Amin raised his hand and gave the messenger a mouthful. Also "Demon law? "He doesn't believe such! Why don't you say that the army invited heavenly soldiers to help in the war?

Amin hurriedly led people to Beixinkou, and when he looked at the fortress, his mouth opened wide, and he couldn't close it for a long time.

I saw that the two bright sun-like disks on the fortress emitted two pillars of light shining on the ice surface of Beixinkou, and these two pillars of light were still moving, scanning the ice back and forth.

It was like an extra pair of "Divine Eyes" on the fortress, probing all movements, and nothing passing through the ice could escape the glance of the "Divine Eyes".

Disheartened, Amin returned to the camp in despair, and his plan was bankrupt before it could be implemented.

If you knew that you shouldn't have made any temptations, it would be nice to send all the trebuchets directly, and maybe you would have taken the fortress.

His closest confidant, Goshhalon Valley, said, "Master! There are those divine eyes here in Beixinkou, and do you also have them in Nanxinkou? Is there all this twenty miles between the north and the south? As long as there is no place, it is a chance for the master! ”

His words reminded Amin, yes! The "Divine Eye" must have been very precious. Otherwise, the Ming army would have taken it out a long time ago, and there would be no need to wait until now to use it.

I only need to try a few more places, and I will definitely break through the defense line of the Ming army and land on the island. As long as he is allowed to go to the island, there is no need to be afraid of any fortress!

The thing on the fortress is indeed a searchlight, which uses the principle of reflection to gather the light from the burning whale oil into a straight line, and this light forms a pillar of light.

Just like those old lighthouses, they are all reflected and concentrated lights. However, Changsheng Island did not use copper plates, but inlaid with dense small mirrors that were only an inch square.

Glass Changsheng Island has long been produced, and the mirror is even simpler. As long as the tin foil is pasted on the flat glass, and then the mercury is poured and waits for ten days and half a month to come out.

However, the mirrors made by this method are very uneven, and it is difficult to create large mirrors. It's not easy to make searchlights, and there are a total of five searchlights made on Immortal Island. One was used in the South Xinkou, two in the North Xinkou, and the rest was used in the lighthouse of the Dragon King Temple.

This was the first appearance of the searchlight in Beixinkou, and it immediately frightened the Jurchens. They no longer dared to climb on the ice at night, but looked at it from a distance.

The news of the Jurchens using trebuchets to throw powder kegs quickly reached Zhang Dou's ears, and he was only surprised but didn't pay much attention to it.

War is the best way to promote the progress of science and technology, and there is no reason for the smooth development of their side, and the Jurchens are still stupid and charge with broadswords and spears.

Only the Chinese who have been enslaved by the Jurchens for hundreds of years in later generations will be so stupid, and the current Jurchens will use their brains. They are constantly learning the tactics of Changsheng Island, which is exactly what Zhang Dou wants to see.

Only by letting the Jurchens use firearms and cannons like him will they give up riding and shooting to fight with Changsheng Island. Changsheng Island is the most fearful of consumption, millions of Liao people are the soldiers of Changsheng Island, as long as there are Han people, Zhang Dou has the confidence to pull up a fighting army in a short time.

The news of the "divine eye" blessing on Changsheng Island for a while spread all over the Jurchen camp at once, and many people worshiped at the top of the searchlight.

Amin also began his path of temptation, and after a night of temptation, the result finally relieved him.

Fortunately, there are only three "Divine Eyes" in the north and south, and there is no such thing on the ice twenty miles between them.

From that day on, during the day, the Jurchens drove the people to storm the defense line between the north and south of Changsheng Island, and at night they would quietly bring trebuchets to the defense line of Changsheng Island and throw powder kegs into it.

Tao Lei is a veteran who followed Zhang Dou in the bloody battle of the Hunhe River, and at the age of thirty, he followed Zhang Dou to fight many big battles.

It is said that with his qualifications, he can be a general manager and be in charge of hundreds of people. But he has no ambition to read more than fifty every time, and the shortcoming of illiteracy has made him a senior all the time.

All the soldiers under his command admired this veteran of many battles, and if it were not for the leadership of this commander, they did not know how many times they would have died.

During the day, the small fortress where they were located repelled two attacks by the Jurchens, and when it came to Shen, the Jurchens once again drove the people to attack.

For a while, the artillery in the fortress roared, and shells were constantly fired outward. The shield carts pushed by the Han people were smashed one after another, and the screams kept coming from below.

Tao Lei hid next to the battlement, and shouted loudly while observing outside: "It's all close to the battlement, just treat the wall of the battlement as a kiln sister." Ma Jingbo, what are you doing so far away, you don't want to live and jump down to fight with Jiannu, don't get blood everywhere! ”

The soldiers of his squad obeyed his orders and pressed their bodies against the wall, which was cold but no one moved their bodies away.

At this moment, a rain of arrows shot out from behind the Jurchens' attacking shield cart, covering the fortress in a dense and continuous instant.

The bastion they were on was very low, just over a foot high. There were no defensive bows and arrows, and the Jurchen bows and arrows could easily be shot against the wall.

Listening to the feather arrows that kept falling behind him, Ma Jingbo's heart relaxed. He was the banner of the Han army who was captured by the Changxing army, and if it weren't for Tao Lei's need for manpower, he would have to work hard until he died of exhaustion.

Today Shi Chang saved him again, and if it wasn't for sticking to the wall, the dense rain of arrows would have shot him like a hedgehog.

Tao Lei put his head close to the battlement and glanced out, and quickly shrank back. A feathered arrow was pressed to his head, "Whoosh! flew over, and Tao Lei cursed a sentence that others couldn't understand.

Just after the Jurchens shot three rounds of feather arrows, Tao Lei shouted loudly: "Shoot!" Hit the enemy on your flank, and leave it alone in the front. Naturally, there are others in that place! Shoot fast! ”

As soon as his order arrived, eight musketeers, including himself, fired out in unison. For a time "Bang Bang!! The sound was incessant, and the enemy kept falling down the bastion.

Suddenly, a Jurchen armor soldier jumped up, and he fell directly behind Tao Lei. And Tao Lei also held a firearm to aim at a Jurchen general wearing a pointed helmet.