Ask for the name of a book about the plague

A few years ago, I read a novel in the library, but I couldn't finish it. When I went to look for it the next day, I couldn't find it anymore (Strange!)
This book was based on the author's personal experience. The author seemed to have opened a small shop at that time. He saw with his own eyes that the city was sealed off, the church in the suburbs buried the dead, and the sick were locked in their homes and left to fend for themselves. They were not allowed to come out.

Answer 1

There was an ancient city called Rat City. Rat City used to be a prosperous business empire, but a sudden plague changed everything. Plague was a serious infectious disease caused by the plague bacteria. After the outbreak in Rat City, it quickly spread to the entire city, causing large-scale death and destruction.

During the days of the plague, a young adventurer named Arwen came to Rat City. Alvin was a brave knight who longed to find the truth and save those who had been killed by the plague. In Rat City, Arvin met a mysterious old man who told him that only a true warrior could defeat the plague. Thus, Arvin embarked on a thrilling adventure.

During Arvin's adventures, he met a variety of characters, including a kind merchant, a sinister thief, a cold prince, and an evil wizard. Alvin fought a fierce battle with them and finally found the pathogen of the plague and successfully defeated it.

Under Arwen's efforts, Rat City was restored to life and people rebuilt their lives. Arvin became the hero of Rat City, and his name was sung to this day.