Chapter 558 (2/2)

Du Qiaoyun thought about it, and finally found in memory and the symptoms of the eldest princess on the record.

Poisoning!

The eldest princess is not ill, she is poisoned!

Du Qiaoyun thought of an ancient book written in sheepskin that he had seen in Zhao's library before. On the surface, this ancient book is just an ordinary medical book. If there is anything special, it is very old.

She didn't understand why the Zhao family collected such rotten Street things as treasures. She thought that the Zhao family collected them as antiques because they were ancient books.

Although this is a common medical book, Du Qiaoyun is a layman in the medical field. Her foundation is very poor. She didn't read all the things that other medical students used to enlighten her. It happened that she didn't read this book, so she read it patiently. She didn't expect that this book would bring her a big surprise.

That day, she accidentally knocked over the tea cup and wetted the book, which changed its appearance.

From ordinary medical books to a complete book of poison techniques, it records the preparation and solution of various poisons, as well as the symptoms of poisoning.

Originally, this book was of high value, but because of its long history, the materials used for many prescriptions either changed their names with the changes of dynasties, or they were really extinct. Anyway, many drug names are unheard of by today's people, so although Du Qiaoyun read them out of curiosity for a moment, he later left them behind.

Now when she saw the symptoms of the eldest princess, she had a vague impression. She thought about it after searching her stomach.