On the eve of the outbreak of World War II, the Polish Cryptography Bureau disclosed to British intelligence the cracking technology of the German Enigma cipher machine, and later with the seizure of the codebook and the physical cipher machine in submarine warfare, coupled with the development of relevant computing systems, the British finally realized the cracking of this cipher system. The main job of Bletchley Manor was to analyze the data collected by the British telegraph listening stations from the Axis powers. Initially, this initial data would be delivered quickly by an intelligence officer on a motorcycle, and later the listening post would transmit the data directly by teletypewriter.

The water tower in the manor was converted into a radio room and named "Radio X", but due to the long antennas protruding from the radio room that could easily expose the target, it was soon moved out of the manor to avoid the suspicion of outsiders. This is why Skorzny was able to find aerial photographs in old archives - the Luftwaffe first discovered the wires and used them as a backup communications centre for London, only to abandon the bombing when they discovered that the obvious antenna group was missing.

Now, this aristocratic estate tucked away in the countryside of Buckinghamshire is the center of Britain's wartime key and cipher index, where a group of special mathematicians decipher German secrets in country cottages, and the Thunderbolts are tasked with finding and destroying them.

The sound of oars and water pierced the silence of the night, and after a day's effort, Randolph and Schubert managed to take control of a fishing boat, and now the commandos who had arrived with submarines were moving from the kayaks to the fishing boats with weapons and the eight pieces of equipment.

This was the most thrilling moment during the landing, and luck seemed to be taking care of Ranke and the others. No sooner had they embarked than the rainy night of the British Isles had returned, and the entire harbour and docklands were shrouded in rain and fog. There is no human figure to be seen from 30 meters away.

"You're finally here." Randolph deliberately lowered his voice, "There are three cars parked in the harbor, one American jeep, and the other two are military trucks, all of which are vehicles used by the port guard troops. Schubert and I stared at them for a day before we found a way to steal it, but the danger is not small, as long as they find out that the vehicle is missing after dawn tomorrow, they will definitely report it to the authorities. This increases our risk of exposure. ”

"We can't go to Bletchley Manor without a vehicle, and we can't take it in a fair way." Ranke gestured to the gendarme uniform on his body, "The Harbor Guard Unit is part of the Navy. They don't know how to bird the army gendarmes, and most of us will only touch the dust when we come to the door, and it will be even more embarrassing if they find someone to verify it. ”

"That's right, we have to think of something else."

"But the loopholes are also here. According to the normal handling of the British. When they find out that a vehicle has been stolen, they will report it to the police and then follow it up to the Navy, and if possible, report it to the Navy -- if I am not mistaken, this kind of inter-service communication system will not be very efficient -- as long as they follow the procedure, they will definitely not be able to react before the end of work today. ”

Skorzny thought about it for a long time, and finally said: "According to your judgment, we will take these cars and go directly to the destination." ”

The convoy was driving on the road and soon came across the first checkpoint.

"Stop!" A sergeant stopped the convoy. And said, "Sir? What are you from? Where are you going? ”

"Sergeant. Here are my documents. Ranke handed a document through the window with a white-gloved hand, "We are from the Cambridgeshire Gendarmerie, I am Lieutenant Colonel Robin, and I was ordered to escort a group of German spies and equipment to Buckinghamshire......"

"German spies?" The soldier on the opposite side looked puzzled.

"Look." Ranke got out of the car and pointed to Randolph and Schubert, who were tied up in two cars, and ostentatiously displayed broken parachutes, seized radio stations, and other German-smelling supplies. Randolph and Schubert were cursing with all their might, and a string of German national curses blurted out, and everyone who listened to them frowned.

"Sir, you're lucky to be able to catch a German spy." After passing the verification of documents, the escort of the troops, and the "genuine" German spy, the sergeant apparently believed the whole situation, "But this kid is so dishonest, you have to keep his mouth shut." ”

Ranke patted the other party on the shoulder and complimented, "Sergeant, you have a good idea, and it seems that you are usually a clever person." Come on, spy-smack me. The team members next to him immediately found two pieces of rags or something else and stuffed them in, Randolph and Schubert tried to struggle, but they couldn't speak.

As the convoy swaggered out of the checkpoint, Ranke noticed that the sergeant was still waving at him.

At the end of the day, two convoys of vehicles suddenly arrived from the gendarmerie in the town of Bletchley, some of which were part of the team led by Rank, and some of which he had sent out to investigate the location of the installation.

"I'm from the MI5 Special Operations Unit and I've been ordered to investigate counterintelligence matters." Rank's first remarks after getting out of the car startled Captain Robert, the head of the gendarmerie squad in the area, and the other party stammered, "Sir, I didn't receive the relevant instructions. ”

"Of course you won't have a directive, because you're the one you're going to arrest." After Ranke finished speaking, he immediately instructed the team members to throw him to the ground, and the British gendarmes around him were stunned. Ranke calmly took out the MI5 official document with the bright red seal from his briefcase, "This is the official document, according to the investigation'Robert is a German spy who has mixed into the ranks, and for the sake of prudence, Lieutenant Colonel Robin is solely responsible for verification and screening'." Ladies and gentlemen, you all belong to the scope of screening, and I hope you will explain the situation to me one by one, including how to deal with cases, how to deal with emergencies, and how to coordinate the relationship around us. ”

The gendarmes were first intimidated by Rank's preemptive momentum, and then frightened by this piece of paper, none of them resisted but chose to cooperate, and no one thought of calling to verify the situation, and they were all controlled by the commandos. Half an hour later, Skorzny came out and reported: "It's all settled." ”

"Very good, I'll stay here and act when the opportunity comes, so you can go your separate ways."

By nightfall, all the installations had been deployed and working, forming an encirclement of the entire estate in exactly eight directions. The gendarme was so successful that no one recognized that the gendarme had completely changed its role today, and the order of the town was as calm as ever.

At nearly 12 o'clock in the evening, a team of experts led by Professor Alan Matheson-Turing of Cambridge University was busy working in the manor, and they received a clear order from MI6 to rush to the scene, and all of them had to put down other tasks at hand and devote themselves to code-breaking - two days ago, the German side suddenly activated a new cipher system, and the German cipher table in the possession of the super-secret instantly turned into a piece of waste paper.

To make matters worse, the listening service told the experts that in North Africa, in the Low Countries, in Germany itself, and even in the Atlantic, the strength of the telegraph signal had suddenly increased like never before, and the volume of communications had increased several times, and the news was said to have alarmed even Prime Minister Churchill. The intelligence services unanimously judged that the Germans were going to make a big move: such a sudden change of cipher would not be done overnight, suggesting that the Germans had been preparing to do so weeks or even a month ago.

"Conspiracy, there must be a big conspiracy." Prime Minister Churchill gave a death order to decipher the new German code as soon as possible, so all the nation's cryptography and intelligence experts gathered in the manor overnight, and 12 o'clock was the moment when their collective wisdom reached its climax.

"Professor, I think the Germans may have started a whole new way of thinking about the programming, rather than simply adding a rotor to the Engny code machine. Because the current cryptologic system is completely different from the original. We have to change our thinking. ”

Turing nodded approvingly: "MacDonald, you are my best student, what can you do?" ”

"My idea is ......," he said quickly, and Turing exchanged ideas with several other professors as it was initially feasible.

"You go and try it first, and get two researchers to help you......"

At this moment, a dull voice of an airplane flew overhead, and someone laughed and said: "The Royal Air Force is going to attack the Germans again today?" ”

"That's not right." Someone said suspiciously, "It stands to reason that you won't fly so low in this place......

Turing said: "Gentlemen, leave the Air Force alone, we must decipher the code as soon as possible, I heard that the Prime Minister is in a hurry, for fear that something will go wrong on the North African front or elsewhere, and sent five telegrams to General Montgomery in a row." "How did they know that this date was deliberately chosen by Hoffman in order to suddenly change the password on the eve of the operation, so that British cryptographers could come together to think about how to crack it, and then create an opportunity for the commandos to catch it all.

"The Germans came by surprise......"

Before the words fell, the sound of a heavy object falling was suddenly heard, followed by explosions and screams: "Air attack, air attack, enemy air strike......"

At this moment, there are three Lancaster bombers in the air who are constantly dropping bombs according to the instructions of the ground positioning system. These four bombers were collected by Germany from the wreckage of downed British planes - those planes that were lucky enough not to break to pieces were repaired and still usable, and they disguised themselves in the evening as Royal Air Force bomber formations that had gone to Germany to bomb and then turned back halfway, and deceived ground radar stations with British transponder codes, and then they began to bomb accurately according to the guidance of the positioning system, this time dropping not ordinary bombs, but the few solidified ****** that Germany was rarely willing to use. Bletchley Manor is too large and has a lot of people, it is difficult to completely destroy it with high-explosive bombs alone, and there are a large number of cabins inside, and the effect will be twice as effective after using solidification ******.

The commandos who had been watching the movement on the periphery could see clearly that the fire had burst out at once, and all the buildings were burning, and there were running figures and screams everywhere in the firelight.

Skorzny gave the order with great ambition: "The Air Force is doing well, it's our turn next, everyone be careful, don't get involved with that thing, otherwise you won't know how to die." (To be continued.) )