In June, news from Britain and France confirmed that the two countries had officially gone to war on the North American continent and were increasing their troops to the colonies.

Almost at the end of the day, the Russian Empire and Prussia's ally, France, secretly signed a non-aggression pact, and the situation on the European continent changed rapidly.

"Your Highness, tomorrow we will finally be able to see our son Paul! But in the past two years, I have never been able to fulfill my responsibilities as a mother, I... I really don't know how to deal with Paul..."

In one of the lounges, Catherine was nervously pacing back and forth, while Peter was sipping coffee and reading the newspaper.

"What's there to be nervous about? He's the meat that fell from you, can you still not recognize you? ”

But I haven't seen Paul since the first day he was born! When I thought that Paul was closest to the nurse and the maids, I was worried that Paul would not recognize me as a mother! Oops... I'm really worried..."

"By the way, what gift did you have for your son?"

"I made Paul a fluffy bear puppet with my own hands, after all, it's his father's favorite pet."

“... Hairy bear, well, whatever you want"

Peter said with a frown.

"What? Is the Muppet Bear not for boys? I actually thought about giving a sword or something, but I thought that Paul was still young, and it might be rusty that I hadn't seen each other for so long, so I planned to give a puppet so that Paul could hold the bear while he slept, just like I hugged him."

At this moment, Ekaterina's whole body is fully exuding the brilliance of motherhood.

"Oh, that's it."

"And what gift does Your Highness plan to give?"

"Me? It's going to be kept secret now, and I'll find out tomorrow when I see the child."

"Oh, really, Your Highness is still playing like a child!"

"By the way, isn't my sister going to prepare a gift too?"

"Oh yes, Sophia is going to prepare a gift too, oh I forgot to clean it up! Thank you Your Highness for reminding me, I'm going to prepare! ”

Catherine kicked through the smoke and ran out in a panic.

“... Don't you need to be in such a hurry? I'm not panicking, what are you panicking about? ”

For his son Paul, although it was not as in history, but was born three years early, Paul I, the tsar, was also a pustule like Peter III, full of naïve idealism, and was assassinated by his son Alexander I in a coup d'état with the acquiescence of his son Alexander I after only six years of reign. Although Peter is not very aware of this history, Peter does not care much about this son who was raised by his aunt, even if it is really his own son.

Peterhof is located on the southern shore of the beautiful Gulf of Finland and is divided into the Upper and Lower Gardens. The famous Peterhof Palace is in the Upper Garden, the magnificent golden stepped fountain is in the Lower Garden, and the canal in the Lower Garden leads north to the Baltic Sea.

After noon that day, Peter and his party arrived at the summer palace, where it would be the first time they saw their son, Paul, who had left his parents since birth.

"What a misfortune, Alyoshka, we are not his parents..."

Empress Elizabeth sat down in the garden and looked at little Paul, who was playing happily with his parents, and murmured to Count Razumovsky.

"You and I are not even husband and wife... Please promise me that we will get married now! ”

The empress said affectionately to the man she loved.

"Is this your request? Your Majesty"

Razumovsky was not surprised, but replied with some self-deprecation.

"Then you will bring me great happiness, but Your Majesty, no one will allow it"

The Count shook his head slightly.

"No one will allow it? Then we will marry in secret, and Father Simono will not refuse."

Compared to the Russian Orthodox bishop, Father Simono is the closest priest to the royal family.

"Behold, Peter and Paul are like father and son..."

Not far away, Peter is teaching his son to play water rafting, a skill that Guo Zijing's father taught him when he was a child, and now he is passing it on to the next generation.

In August 1754, news came from London that Prussia had secretly concluded a defensive alliance with Great Britain against France. Things will develop much earlier than the Seven Years' War in history, and I am afraid it will be more tragic.

Boom –

With a loud bang, flowers exploded on the surface of the sea, and sawdust that had been torn to pieces by the huge explosive force crumbled all over the sky.

"Although the trigger device needs to be further improved, this kind of mine can already meet the needs of the port closure, hehe"

After standing on the bow of a new sail warship and looking out at the blasting site, Peter smiled and said to Mihai, the president of the Royal Academy of Sciences, beside him.

"Your Highness's method of using the impact to drive the flint friction to ignite the powder tube is indeed very ingenious, that is, the trigger device must be equipped with several more, otherwise it will not trigger the blasting even if it rubs against the hull."

Just now they hit semi-submersible mines with towed wooden boats several times, and only the last one succeeded, and it is estimated that most of them are related to the fact that there is only one trigger on the top of the mine.

"Hehe, the role of mines is mainly just in case, and the British may not really risk their lives to attack St. Petersburg, I think your rockets are more important"

"Yes, after experiments, the range of the rocket is enough to reach more than 300 yards, which is the most suitable for dealing with wooden sailing ships."

Mihai turned his head to look at a huge 'iron box' in the stern of the ship.

"Isn't it, in the past, naval battles were used to try to break the masts of the opposing ships with chain balls, but now it is better to burn those huge sail canvases, and maybe they can continue to be used after being captured."

"Aha, if you can carry a hot air balloon on a sailboat, won't the observation distance be exponentially increased?"

Mihai suddenly thought of something again and said excitedly.

"Haha, you're not afraid that the brazier will accidentally burn the sailboat, the wind at sea is so strong, it's very difficult to fly a hot air balloon, right?"

"Oh... yes, I'm thinking too much."

The Great Scientist sighed with a gloomy expression.

"If only the balloon could fly without fire..."

Peter stuck out his tongue.

Although Peter didn't know how the scientists of the 19th century made hydrogen in large quantities and filled it with balloons, 'lighter than air' was a school of aeronautics that dominated for nearly a hundred years, and it wasn't until the Wright brothers invented the propeller plane that it really broke down.

"Balloons that don't need fire... Why does this sound so contradictory? Can there be a gas that is lighter than air? ”

The Great Scientist's expression changed suddenly.

"Ahem, this..."

Peter touched his nose weakly, and said in his heart, Lao Tzu can't even say hydrogen, helium, or something!

"Although I know that Your Highness does not adhere to the 'phlogiston theory', but the air is really light and heavy..."

Mihai muttered with a frown.

The phlogiston theory was a widely popular theory in the scientific community until the discovery of oxygen, because people at that time could not distinguish the composition of the air, so the phenomenon of ignition combustion was only attributed to the widespread presence of the substance 'phlogiston' in the air.

"Haha, the world is so wonderful!"

Peter smiled.

"Well, Your Highness seems to have a hard question for me! Even the Goldbach conjecture of n=3 was rejected by Reinhardt. Euler unraveled it, but I didn't expect that there were still so many unknown things in the world, and I was really afraid that I wouldn't have enough time to find out..."

"Then bring Euler back to St. Petersburg"

"Oh, it's a fascinating idea..."

Mihai pouted.

Euler, one of the greatest mathematicians of his time (the Goldbach brother is still alive), is the father of gun ballistics. Euler was originally serving at the Imperial Academy of Sciences in St. Petersburg, but after Empress Elizabeth I usurped the throne, she fled to Berlin and became a guest of honor of Frederick the Great of Prussia, and did not return to Russia until Catherine II ascended the throne.