- Agatha Christie is one of the most popular mystery writers from England. She has written many books- mystery novels, short stories, and also romance novels under the pen name of Mary Westmacott. Agatha is most famous for her mystery novels and short stories. She is the creator of iconic detective characters, including the famous Hercule Poirot and Miss Jane Marple, and has written several mysteries involving them as detectives.She has written novels that dont involve any of her popular detective characters. And Then There Were None is one among those. Her other popular books include Murder On The Orient Express, The Murder of Roger Ackroyd, Five Little Pigs, The Mysterious Affair At Styles, Curtain, Sleeping Murder, Cat Among The Pigeons, and Dumb Witness.Agatha Christie was born in 1890 in Devon, England. She was a poet and playwright, apart from being an author. She was not schooled during her early years, but she taught herself how to read. She married Archibald Christie in the year 1914, and had a daughter with him, named Rosalind Hicks. She died in the year 1976, at the age of 85.