What secret is there under the lake to celebrate the year?

The secret at the bottom of Qing Yuannian Lake was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, there was a forbidden door hidden at the bottom of the lake. This door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. The Forbidden Door involved the birth, aging, sickness, and death of humans, as well as Fan Xian's life and fate. Fan Xian might open this door and enter the hidden door. There might be many terrifying things inside the hidden door, and many truths were hidden. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of the Qing Yu Nian lake involved the taboo door, the laboratory, high-tech equipment, Fan Xian's life and fate, and the cause of Ye Qingmei's death and the truth.

The secret at the bottom of the lake in Qing Yu Nian's Taiping Courtyard was the forbidden door. According to what Ye Qingmei had mentioned in her letter to Fan Xian, there was a forbidden door at the bottom of the lake. It was also the final location of all secrets. This Forbidden Door might be Ye Qingmei's laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. Fan Xian might open this door and enter the hidden door. There might be many terrifying things inside the hidden door, and many truths were hidden. Ye Qingmei also mentioned that opening this secret door required one to be prepared to face the abyss at any time. Once it was opened, Fan Xian's life would undergo a tremendous change. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of Taiping Courtyard's lake might involve Fan Xian's life and fate, as well as the truth of Ye Qingmei's experiments and seeds.

The secret at the bottom of the lake in Qing Yu Nian's Taiping Courtyard was the forbidden door. According to what Ye Qingmei had mentioned in her letter to Fan Xian, there was a forbidden door at the bottom of the lake. It was also the final location of all secrets. This Forbidden Door might be a laboratory with modern high-tech equipment, such as mobile phones, navigation, computers, etc. Fan Xian might open this door and enter the hidden door. There might be many terrifying things inside the hidden door, and many truths were hidden. Ye Qingmei also mentioned that opening this secret door required one to be prepared to face the abyss at any time. Once it was opened, Fan Xian's life would undergo a tremendous change. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of Taiping Courtyard's lake might involve Fan Xian's life and fate, as well as the truth of Ye Qingmei's experiments and seeds.

The secret at the bottom of the lake in Qing Yu Nian's Taiping Courtyard was the forbidden door. According to what Ye Qingmei had mentioned in her letter to Fan Xian, there was a forbidden door at the bottom of the lake. It was also the final location of all secrets. This Forbidden Door might be a laboratory with modern high-tech equipment, such as mobile phones, navigation, computers, etc. Fan Xian might open this door and enter the hidden door. There might be some important items and secret documents inside. Ye Qingmei also mentioned that opening this secret door required one to be prepared to face the abyss at any time. Once it was opened, Fan Xian's life would undergo a tremendous change. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of Taiping Courtyard's lake might involve Fan Xian's life and fate, as well as the truth of Ye Qingmei's experiments and seeds.

The secret at the bottom of the lake in Qing Yu Nian's Taiping Courtyard was the forbidden door. According to what Ye Qingmei had mentioned in her letter to Fan Xian, there was a forbidden door at the bottom of the lake. It was also the final location of all secrets. This Forbidden Door might be a laboratory with modern high-tech equipment, such as mobile phones, navigation, computers, etc. Fan Xian might open this door and enter the hidden door. There might be many terrifying things inside the hidden door, and many truths were hidden. Ye Qingmei also mentioned that opening this secret door required one to be prepared to face the abyss at any time. Once it was opened, Fan Xian's life would undergo a tremendous change. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of Taiping Courtyard's lake might involve Fan Xian's life and fate, as well as the truth of Ye Qingmei's experiments and seeds.

The secret at the bottom of the lake in Qing Yu Nian's Taiping Courtyard was the forbidden door. In her letter to Fan Xian, Ye Qingmei mentioned that there was a forbidden door at the bottom of the lake. It was also the final location of all secrets. This Forbidden Door might be Ye Qingmei's laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. Fan Xian might open this door and enter the hidden door. There might be many terrifying things inside the hidden door, and many truths were hidden. Ye Qingmei also mentioned that opening this secret door required one to be prepared to face the abyss at any time. Once it was opened, Fan Xian's life would undergo a tremendous change. Ye Qingmei's death was related to this secret. Fan Xian might reveal the truth of his mother's death to fight to the death with the Qing Emperor. In short, the secret at the bottom of Taiping Courtyard's lake might involve Fan Xian's life and fate, as well as the truth of Ye Qingmei's experiments and seeds.

The bottom of Qing Yunian's lake was a place called the Forbidden Door, or it could be a temple. There might be some high-tech instruments and scientific literature hidden at the bottom of the lake, as well as letters between Ye Qingmei and the Qing Emperor. However, the specific details and content were not mentioned in the search results provided. Therefore, there was currently no definite answer as to what exactly was at the bottom of Qing Yunian's lake.

The bottom of Qing Yunian's lake was where the Forbidden Door was. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of the lake could be a laboratory. There could be modern high-tech equipment inside. Fan Xian might open this door and enter the hidden door. There might be many secrets inside the hidden door. The specific details and content were not found in the search results provided.

The bottom of Qing Yunian's lake was known as the Forbidden Door, and it could also be a temple. According to the description in the novel, there might be some high-tech instruments and scientific literature hidden at the bottom of the lake, as well as letters between Ye Qingmei and the Qing Emperor. However, the specific details and content were not found in the search results provided. Therefore, there was currently no way of knowing what was at the bottom of Qing Yunian's lake.

The trap at the bottom of the lake in Taiping Courtyard was a secret room or a hidden door. It might hide the Qing Emperor's books, works of art, treasures, and secret documents, as well as the truth of the matter Fan Xian wanted to know mentioned in the letter Ye Qingmei had left for Fan Xian. Ye Qingmei said in the letter that after opening the mechanism, one could enter the secret door. There might be modern things that Fan Xian could understand, such as phones, navigation, computers, and other high-tech equipment. However, the specific contents and functions behind the mechanism, as well as whether Fan Xian had finally opened the mechanism, were not mentioned in the search results. Therefore, the specific details of the mechanism at the bottom of the lake were currently unknown.