An egg-shaped shuttle appeared above the East China Sea Fleet's station, and through the glass porthole, Ye Yunyang saw the expressions of the soldiers and felt that his morale was very low.

These days, they have gone out to sea several times in search of the enemy, but they have either found nothing or have been attacked in an unprepared situation, causing serious losses.

The most important thing is that when the battle came to this, no one had ever seen the appearance of a pirate ship, and those second-generation orcs were elusive, suddenly appeared, suddenly attacked, and then suddenly disappeared.

It is not they who have suffered the most, but the coastal dwellers, who have already sacked more than a dozen towns and hundreds of villages, killed young and middle-aged people, and not spared women, old people and children.

Dai Jingwei, the general of Jinghai, was sitting in the tent, sighing at the chart in front of him, since he became a general, he had never suffered such a big loss.

Suddenly, there was a cacophony outside.

He was already in a bad mood, and asked very unhappily: "What happened, making noise with people?"

The adjutant walked in, clasped his fists at him, and said, "An egg-shaped shuttle has come over the camp with a royal emblem on it. ”

Dai Jingwei raised his eyebrows: "Royal symbol? It should be Your Majesty who received the letter from this general and sent someone over, I don't know which lord it is, quickly gather all the generals to line up to greet him." ”

Since he was sent by the emperor, of course he couldn't be lazy.

He stood up and walked out quickly, reaching out to take off the helmet on the shelf and putting it on his head before leaving the tent.

As soon as the drums of the gathering generals were remembered, the hatch of the egg-shaped shuttle opened outward, and Ye Yunyang walked out slowly.

"His Royal Highness the King of Pingnan!" Dai Jingwei was taken aback, and hurriedly ran over and knelt down on one knee: "The lowly Jinghai general Dai Jingwei visited the prince, you are here, and the lowly duty is far away, please forgive me." ”

Ye Yunyang smiled and said: "What's polite, you and I are not outsiders, this king heard that you have trouble here, and you just have time, so I came over to take a look." ”

Dai Jingwei said happily: "King Pingnan personally came forward, there is no need to worry about the humble position, under your eyes, that group of hateful pirates are dead, Your Highness, please." ”

At this time, Liu Yuying, Dongfang Yixue and Ying Qi walked out of the hatch one after another.

Dai Jingwei and the generals saluted them one by one, their expressions were very respectful.

The four of them walked into the Chinese army's tent surrounded by the generals, and Ye Yunyang said straight to the point: "None of them are outsiders, don't say polite words, Brother Dai will introduce the situation to us first." ”

A sentence of Brother Dai made Dai Jingwei feel that he had more face in front of his subordinates, and hugged his fists and said: "Humble and obedient." ”

He walked to the wall chart on one side, pointed to the dense red circles on it with a small stick, and said: "In the past half a month, pirates have appeared 12 times, looted more than 20 villages and towns, and slaughtered more than 900 people for no reason; they also sank three medium-sized warships of our navy, causing the martyrdom of nearly 200 soldiers and soldiers. ”

Ye Yunyang frowned: "They are too arrogant, they treat the big man as a no-man's land, they can come and leave as soon as they want!"

Dai Jingwei smiled bitterly: "Who said no! Since the Demon Emperor was eliminated by His Royal Highness, the orcs have become lost dogs, and they have never been chased and beaten by us." ”

Forget about the loss of troops and generals, after all, it is a war, and there will always be casualties.

But what makes people feel that the details of the place have not been clarified until now, and the landing and retreat routes of the other party are judged based on footprints and other traces, and the navigation routes are calculated, and no one has ever seen the appearance of a pirate ship, and how they escaped from the three-dimensional defense network composed of warships and flying wings is still unknown.

Ye Yunyang raised his head and asked, "Who here has fought with pirates head-on?"

A young captain took two steps forward and said loudly: "His Royal Highness King Qi Pingnan, I have fought with him. ”

Dai Jingwei said: "This is Xiang Zhong, the school captain, who graduated from Dongping Mansion School and is a shrewd and capable young man. ”

Dongping Mansion School, that is, the former Dongping Guodu College, Ye Yunyang and Dai Jingwei were both students there, but he transferred to Guozijian in advance before he graduated.

"It's an alumnus. Ye Yunyang said with a smile.

Being able to get the affirmation of his seniors, Xiang Zhong felt that his face was bright, and his tone couldn't help but have more pride, plus some excitement: "Six days ago on the night, just after the early morning, I started patrolling the ship with two of my men according to my custom, and suddenly heard a strange noise, so I ordered the crew to enter a state of readiness. Sure enough, after ten minutes, six small boats were speeding towards us, and there were more than twenty pirates on each boat, all of whom were above the Ming Realm, and the masters of the Gathering God Realm were the mainstays. ”

Because of the preparations made in advance, dozens of bed crossbows on the ship fired highly poisonous crossbow guns at the same time, plus the rain of arrows fired by the crew, so that the small boat could not approach the warship, and the other party saw that the situation was not good, and immediately ordered to return.

Xiang Zhong ordered the warship to pursue, but after ten minutes, the boat disappeared, and the pirates disappeared into the vast sea.

Because it was night, the line of sight was greatly obstructed, and in order to ensure the safety of the warship, Xiang Zhong had to sail away from that sea area as soon as possible.

After daybreak, a fleet of more than a dozen warships, plus dozens of flying wings for air cover, searched the area, but in the end found nothing, not only did not find the pirate ship, but even the dinghy was nowhere to be found.

Dai Jingwei added: "The two warships that were sunk also encountered a similar situation, the captain and soldiers failed to respond in time, resulting in a sudden attack on the ship. ”

Speaking of this, he turned his head to look at Xiang Zhong and said, "At this point, Captain Xiang Zhong deserves praise. ”

"General Jinghai is polite, and his subordinates are just doing what a captain should do. Xiang Zhong said in a modest tone.

Ye Yunyang's brows were about to twist into a pimple, and he said, "Can the enemy really come and go without a trace?"

Dai Jingwei nodded and said: "It's basically like this, they always appear suddenly and disappear suddenly, every time they land to commit a crime, I send flying wings to reinforce as soon as possible." In the shortest time, the flying wings arrived within six minutes, but the other party still escaped. ”

Ye Yunyang looked at Xiang Zhong and asked, "You just said that you heard a strange sound when you were cruising the ship, can you describe it?"

Xiang Zhong reminisced as he said: "The gurgling sound, low and long, a bit like the sound of a kettle boiling, but not so intense, more like a splash on the surface of a calm lake, I don't know if I was right." ”

Ye Yun raised his eyebrows and furrowed, and a bold idea suddenly popped up in his mind, could it be a submarine?

When the hull floats, the water in the tank is squeezed out by pressure, and when the hull is close to the water surface, it can cause the phenomenon of water splashing, accompanied by a sound.

If it is a submarine, it will explain how pirates can come and go without a trace, the pirate ship is in the water, the warship on the surface and the flying wings in the air are of course not visible, they can rise to the surface and release attack boats at any time, or land and ransack towns, or quietly approach unprepared warships and launch a surprise attack.

When retreating, you only need to retract the dinghy and crew, and then you can sink and hide in the water, and disappear without a trace.

Because the pirates are composed of second-generation orcs, the early warning device can only detect demon beasts, and cannot play an early warning role on orcs.

Liu Yuying saw him with a thoughtful look and asked, "Did you think of something?"

He nodded, and said in a deep voice, "If my prediction is correct, the pirates must have mastered the art of underwater navigation, and they piloted ships that could sink into the water to evade our warships and flying wings. ”

"The ship sinking in the water?" Dai Jingwei and the other soldiers all widened their eyes, thinking that this conclusion was a bit shocking.

If it was from someone else's mouth, they would definitely scoff at it, but now it was Ye Yunyang who was speaking, whether it was his rank, identity or status, everyone only looked up, so although they felt ridiculous, no one dared to refute it.

Dongfang Yixue frowned: "Is there such a thing, it's unlikely, right?"

Ye Yunyang shook his head: "It is very possible, we can build flying wings, the Protoss can make flying shuttles, why can't the orcs make submarines...... Ahem, that's the name I gave it. ”

Dai Jingwei's face was heavy, he already had eight points of faith, because in his impression, Ye Yunyang had never made a mistake.

"No wonder they were able to come and go without a trace, easily through our tight lockdown circle. He said in a deep voice.

Liu Yuying said: "The pirate ship is hiding underwater, doesn't it mean that we don't have the slightest way to do it. ”

Ye Yunyang smiled: "One thing to one thing, with our current equipment, it is indeed impossible to deal with it, but it does not mean that there is really no way." ”

"I knew you had a way. Liu Yuying said happily.

The generals also showed joy on their faces, and Ye Yunyang said modestly: "I just have a preliminary idea, as for whether it is applicable or not, it needs to be tested to know the answer." General Dai, you immediately send all the flying wings to the area where pirates are frequently active, and carry out reconnaissance missions. ”

Dai Jingwei was stunned: "How to investigate?"

Since the pirate ship is hiding underwater, can the flying wings be found?

Previous experience had taught him that it was useless to do so.

Ye Yunyang said in an unhurried tone: "It's not to let Feiyi find a submarine, but to observe the sea surface carefully, as long as you find an abnormal splash, or a very abrupt pipe on the sea, report it immediately." ”

"Pipe?" Dai Jingwei didn't understand.

"Yes, snorkel!" Ye Yunyang smiled and said, "Submarines can hide underwater, but pirates always have to breathe air, so there will be a snorkel exposed to the sea." To put it simply, if you find something that resembles a stick, standing on the surface of the water instead of floating on the water, report it immediately. ”

He believed that with the technology of the orcs, it was impossible to create a submarine in the true sense, especially in terms of power, the ship moved under water, the resistance of the water was many times higher than that on the surface of the water, and if it was only by rowing, the speed of travel was not much faster than that of a snail.

Therefore, when there are no Han warships in the surrounding waters, they will definitely surface to the sea, not only can they breathe more fresh air, but also can go to the next destination faster.

Maybe they don't dare to surface during the day, but at night, they will definitely do so.

During the day, even a snorkel that sticks out of the sea can reveal the submarine's whereabouts.

Dai Jingwei roughly understood what he meant, straightened his waist and straightened his chest and said: "Obey the order, and go to the lowly post immediately." ”

As for what to do after discovering the submarine, Ye Yunyang already had a preliminary plan in his heart.