"Yes, sir." Mussen nodded, he slipped the telegram into the pocket of his coat and asked with some uncertainty, "Where are the others?" ”

"Others," Dönitz laughed, and as he was about to answer, someone in the bilge suddenly reported: "Sir, the listener reports that he heard the sound of a propeller." ”

"Coming?" Dönitz was shocked, and no longer looked with the telescope, and directly ordered to 'dive to the periscope depth', and then slid down the slide leading from the bridge to the bilge, and in the rapid electric bell, the sailors in the submarine ran to the bow at this time, and the chief engineer was shutting down the main engine, checking the valves, and the main drain was also working.

In the murky air, Dönitz walked to the listening room, "Is it the fleet?" ”

The listener nodded and handed him the headphones he was wearing. Hazy, Dönitz seemed to hear a slight boom, and the sound was mixed, but the more it was, the more it showed that it was a mixture of many ships.

"Get ready, ready to fight!" This was the first thing Second Lieutenant Dönitz said after putting down his headphones, and after he finished speaking, he rushed to the periscope and began to search for this far-flung fleet, which was the prey he had patiently waited for tonight.

The sound of the engine in the auditor's headphones is getting louder and louder, and the periscope is in the moonlight, and the shadow of the ship from the east can be seen. The tall and bloated merchant ships were the destroyers that moved quickly on one side, and they were equipped with searchlights, emitting snow-white beams of light that shone on anything suspicious, the most annoying thing about submarines, but it existed.

"The azimuth is 175, and the main engine is 50 revolutions per minute." Second Lieutenant Dönitz ordered. He wanted to get into the gap of about one nautical mile between the destroyer curtain and the merchant fleet, and with the teachings of the veterans, this was the best place to attack. The target was a merchant ship at the head of the flotilla on the north side of the fleet.

Everything was as good as the second lieutenant had expected, and the UB-68 cautiously moved a little and a half nautical miles through the water, with its bow facing the direction of the merchant ships, and he was ready to sink the front merchant ship, causing confusion in the fleet, and then completely entering the time of free hunting. But man is not as good as heaven, just when Dönitz ordered the torpedo tube to be turned on. The fleet turned abruptly - in order to avoid submarine ambushes, not only the warships often made a zigzag movement, but also the merchant fleet. On moonlit nights, the fleet began to turn every short part of the voyage.

“Scheisse！” Dönitz subconsciously cursed, and then ordered loudly: "Turn off the torpedo tubes." The azimuth is 065, and the main engine is moving forward at full speed ......"

His order was not finished. In the periscope, the fleet bloomed with brilliant sparks. This is a submarine lying in ambush on the other side and also firing angles firing. With this violent explosion, the entire fleet fled like a hornet's nest, but the searchlights on the escort destroyers shone in all directions, and the guns and shouts continued one after another.

"Dive! Dive! Seeing that the fleet was in disarray, Second Lieutenant Dönitz could no longer care about his own safety, he shouted into the periscope a few times, and when he realized that his orders were incomplete, he turned his head to look at the chief engineer. Ten on the bow and five on the tail, start the diesel engine. We're going to go full speed ahead. Take advantage of the chaos to take out those merchant ships! ”

With the second lieutenant's order, the submarine Flying Fish jumped out of the sea, and with the roar of the diesel engine......, the UB-68 chased the chaotic merchant ships at great speed on the sea.

"Get the binocularscope scope! Burn the wind! The second lieutenant stood on the bridge, looking at the sparks that were blooming not far away, and his heart became more and more anxious, and he thought that he should fire a few torpedoes at the flotilla now, and if it was too late, the escort destroyer would go around to his side from the other side of the flotilla. Torpedo tubes one to four are ready for ...... Maintain level, chief engineer ...... Enemy speed twelve, distance three thousand five hundred...... New Toujiao 034......"

Before Dönitz's order was finished, the first mate behind him, who was also watching around, let out a scream, "Dive!" Dive! With that, he slid down, and the electric bell in the submarine rang again. Dönitz didn't know what Müller had discovered, but he slid into the bilge after Müller had slid down. As before, there was another commotion among the sailors in the submarine, and they all ran to the bow of the boat, so that the bow could dive at a greater angle and faster.

"What's going on?" In the busyness of the sailors and non-commissioned officers, Dönitz asked Müller as he turned the periscope.

"Sir, a destroyer is right behind us, and it's already spotted us!" Muller's heart was palpitating. The light of the searchlight had nearly blinded him just now, and he was sure that the damn British had spotted UB-68.

"How deep should we dive?" Hearing that it was discovered by the destroyer, the chief engineer on the side was a little flustered, and just now the first mate only ordered to dive, and did not say how deep he wanted to dive at all.

"Destroyers?" Dönitz searched in the periscope, and it took him a while to find the searchlight, but if he could see it, it meant that the searchlight had found him. "Fifteen under the bow and fifteen on the tail. Empty the dive tank! Urgent dive! Watch out for depth charges! The second lieutenant finally felt a chill that penetrated deep into the marrow of his hair from the regret of not being able to pursue the merchant fleet, and the beads of sweat on his forehead came out instantly.

Before the advent of depth charges, submarines were invincible underwater, but since the Chinese invented depth charges, submarines under the surface of the sea have become very unsafe. Although those stupid destroyers may not be able to accurately drop bombs on their heads, every sailor is terrified when they hear the rumbling explosion and feel the violent shaking caused by the explosion. Although it is made of steel, the submarine under the surface of the sea is like a glass bottle of wine, which can be shattered by the shock wave of the bomb if you are not careful, and at that time, the broken submarine will only take everyone to the bottom of the sea where the sun will never see the light of day, and never float again.

During the order, the high-pressure air in the diving chamber was quickly emptied, and the seawater quickly poured into the diving chamber, but at the same time as the submarine was sinking urgently, the explosion of the depth charge sounded not far away. The water waves faithfully transmitted the energy of the explosion, and not only did the hull shake violently, but the sailors in the boat who were holding their breath also began to shout in panic. Seeing this, the first mate kept repeating the order, telling the sailors to hold on to everything they could, while remaining calm.

After a period of confusion, the submarine finally fell silent, and everyone stared straight overhead, as if listening to God; Only the voice of the listener in the boat was reporting the enemy situation: "The enemy ship is approaching, and the speed is very fast, in the 015 direction. (To be continued......)