Agatha Christie is the most famous mystery writer in the world. Her books have been published in over 100 languages. She is one of the best-selling novelists of all time. Over two billion copies of her books have been sold.
September 11 is the anniversary of the terrorist attacks in 2001 on the United States. Almost 3000 people were killed that day. The day is known as 9/11 (which is the American style of writing the date – month then day).