The owner of the Millennium Tomb is a nine-year-old girl. What's engraved on her coffin?

Although this is an ancient tomb of the Sui Dynasty, it has a history of thousands of years now, but the owner of this ancient tomb is only nine years old and has carved a few words on its coffin. Experts feel very worried after reading it.

1. For a country's historical civilization, knowing the truth is inseparable from archaeology. 1957, archaeologists went to Xi 'an, where they found an ancient tomb of the Sui Dynasty. Many ancient cultural relics have been unearthed in this tomb, which is of great significance to the next research. Archaeologists think that the sarcophagus in this ancient tomb is very exquisite. After research, people found that this is a nine-year-old girl named Li.

Here, archaeologists found that the little girl had many precious gold, silver and jewels besides the servants and attendants buried with her. Through observation, we can find that the identity of the little girl should be very special, especially the necklace hanging on the little girl. Although it has a history of thousands of years, it still looks very unique. According to historical records, Li is the true royal family of Qi. His grandfather was Li Chong, a famous Sui Dynasty star, and his grandmother was Yang Lihua, the Empress Dowager of Zhou Dynasty. Li is very popular with Zhou, and his position is naturally unusual.

Although this ancient tomb was found, experts found four words engraved on it when they opened the coffin. These four words worried the experts present. What are these four words? Open death? Although this is a bit scary to the people on the scene, the experts insist on their careers. After some exploration, no other accidents occurred. Although I don't know what the purpose is, I guess it should be to prevent grave robbers from coming in and destroying it.