The young apprentice hurriedly said: “Please go ahead!”

Chu Yan had been here before. He knew what the most worthwhile things to see in this stargazing tower were, so he directly took Bai Zhi to the study room. He lifted the white cloth covering the table, and the things on the table were arranged exactly as they were counted. Years passed, but time here seemed to have stopped, and nothing had changed.

Bai Zhi’s gaze was immediately attracted by the painting on the table, on which were stars and star trails. Under the painting was a page full of numbers.

The person who painted this picture seems to be calculating something. Although she loved astronomy, she knows nothing about it.

She can’t understand it at all, she can’t find a clue.

“Do you know what this is?” Chu Yan asked.

Bai Zhi stared at the painting and murmured: “It’s the trajectories of the stars. He seems to be calculating the cycles and trajectories of the stars. I don’t know the details. When the physiognomist comes back, just ask him.”

She concealed the shock in her eyes, she never expected that another modern person would appear.

Below the drawing paper was a piece of manuscript paper filled with numbers of English letters and mathematical formulas.

If that person was not from the modern era, how could it be possible to understand this?

It seems that just as she and Gu Boyang guessed, in this world, there were not only two modern people. There may be more.

Some people wanted to go back, but some people didn’t want to go back after they got here.

No matter whether they want to go back or not, they will not easily reveal their true identities. They will hide them carefully, so it was difficult for them to find these people.

As for her and Gu Boyang. Gu Boyang remembered his wife and children. Even though more than ten years have passed, he still wants to go back to modern times and reunite with his wife.

While, in modern times, except for Lin Yang, she has almost no relatives. But here, she has so many relatives, so many friends who care about her, so she doesn’t want to leave. She just wanted to stay here and live a good life.

She hadn’t seen this physiognomist for several years, has he found a way to leave here?

Chu Yan fetched the guest book and handed it to Bai Zhi: “Look at this, it’s quite interesting.”

Bai Zhi regained her senses, her eyes moved away from the star trails on the paper and landed on the guest book.

After turning two pages, she suddenly laughed. This was very similar to the space blog they play in modern times, which was very interesting.

There were no usable clues in the guest book, and there was nothing in the room that could help Bai Zhi except this star map.

Bai Zhi asked the young apprentice: “When will your master come back, did he say something else in the letter?”

The young apprentice shook his head: “Master’s whereabouts are always uncertain. This time, it is already a rare thing that he sent a letter 3 months in advance, but the strange thing is that according to the date written in his letter, the day before yesterday was the deadline. But I haven’t seen him back for two days, so I’m quite worried.”

Chu Yan said: “Can you show us the letter from your master?”

Originally, this letter was not allowed to be read by outsiders, after all, it was a private letter written by the master to his apprentice.

But now the person who asked him for the letter was the Emperor. He didn’t have the guts to offend the Emperor, so he could only go and get the letter obediently.

The handwriting on the letter was very scribbled, and one could know people by writing, so this person must be a kind-hearted person with a free and easy personality.

He didn’t write much. Just as the boy said, he just mentioned the date of returning to the Stargazing Tower and didn’t say anything else. He didn’t say where he was when he wrote the letter, and he didn’t say whether he would come back by land or by waterway. He didn’t mention the day when he will set off, nor where he will set off from.

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