A big project is happening at the Pannonhalma Archabbey in Hungary. This monastery is 1,000 years old and is very important for the country’s history. It is also a UNESCO World Heritage site. During cleaning, workers found that many books in the library had bugs called drugstore beetles. These beetles usually eat dried food, but they can also eat the glue in old books. About 100,000 books have been damaged. This is one-fourth of the abbey’s 400,000 books. The monastery started in the year 996. It has some of Hungary’s oldest books and records, including 19 codices and a Bible from the 13th century. Experts are worried because some of these books cannot be replaced. If they are lost, Hungary will lose part of its culture and history. To fix the problem, the team is putting the books in plastic boxes with nitrogen. This removes the air so the beetles cannot live. This process will take six weeks. After that, workers will check and clean each book. Experts say that climate change may have made the problem worse.