Agatha Christie is known throughout the world as the Queen of Crime. Her books have sold over a billion copies in English with another billion in over 70 foreign languages. She is the most widely published author of all time and in any language, outsold only by the Bible and Shakespeare. She is the author of 80 crime novels and short story collections, 20 plays, and six novels written under the name of Mary Westmacott.

Agatha Christie's most daring crime mystery - an early and particularly brilliant outing of Hercule Poirot, The Murder of Roger Ackroyd, with its legendary twist, changed the detective fiction genre for ever.

Poor Roger Ackroyd. He knew the woman he loved had been harbouring guilty secret. And then, yesterday, she killed herself.

But guilty secrets rarely stay secret. Who had been blackmailing her? Had it really driven her to suicide? Sadly, Roger Ackroyd wasn't going to live long enough to find out . . .