Agatha Christie is the most published author of all time after Shakespeare. The circulation of her books is second only to that of his works — and the Bible. More than a billion Christie books have been sold worldwide in English and as many in other languages. She is the author of eighty detective novels and short story collections, twenty plays, two books of memoirs, and six psychological novels written under the pseudonym Mary Westmacott. Her characters Hercule Poirot and miss Marple have forever become exemplary characters of the action genre. In this book you will find three famous novels by lady Agatha, which have become the standard detectives of all time.