Soon after Gwenda moved into her new home, odd things started to happen. Despite her best efforts to modernise the house, she only succeeded in dredging up its past. Worse, she felt an irrational sense of terror every time she climbed the stairs…

In fear, Gwenda turned to Miss Marple to exorcise her ghosts. Between them, they were to solve a ‘perfect' crime committed many years before.

Agatha Christie was born in Torquay in 1890 and became, quite simply, the best-selling novelist in history. Her first novel, The Mysterious Affair at Styles, written towards the end of the First World War, introduced us to Hercule Poirot, who was to become the most popular detective in crime fiction since Sherlock Holmes. She is known throughout the world as the Queen of Crime. Her books have sold over a billion copies in the English language and another billion in over 100 foreign languages. She is the author of 80 crime novels and short story collections, 19 plays, and six novels under the name of Mary Westmacott.