Beetles are eating thousands of very old books. The books are in a 1,000-year-old library in Hungary. There is a Bible from the 13th century. There are many old documents. Library staff are putting the books in large plastic bags. They removed the oxygen from the bags. After six weeks without oxygen, the beetles will die.

The insect eating the books is the drugstore beetle. It usually eats dried food, but it also likes the glue in books. Librarians saw lots of dust on bookshelves. They found holes in the books. They knew beetles were chewing through the books. A librarian was worried. She said if a book is ruined, "a piece of culture has been lost".