Hercule Poirot is to return in a new novel backed by the family of Torquay-born Queen of Crime Dama Agatha Christie.
Her most famous creation will be brought to life in an as-yet-untitled book by crime novelist and poet Sophie Hannah, which will be published in September 2014.
Sophie will appear at the Agatha Christie Festival on Thursday September 19 at 4.30pm at Torquay’s Grand Hotel.
Hers will be the first official novel to continue Agatha Christie's work.
Hannah told the BBC Christie was the writer who made her "fall in love with mystery fiction" at the age of 13.
She said: "I read and collected all her novels within a year, and have been a passionately - some might even say obsessively - devoted fan ever since.
"It was Hercule Poirot and Miss Marple who, between them, made me want to devote my working life to crime fiction and it was Christie's brilliant plotting and deep understanding of the human psyche that shaped my identity as a crime writer.
"Therefore, it is almost impossible to put into words how honoured I am to have been entrusted with this amazing project - in fact, I still can't quite believe that this is really happening. I hope to create a puzzle that will confound and frustrate the incomparable Hercule Poirot for at least a good few chapters."
Dame Agatha died in 1976, and according to her grandson Mathew Prichard, it was "pure serendipity" that led to Hannah being commissioned.
He said: "Her agent happened to approach HarperCollins in exactly the same week that my colleagues and I had started discussing a new Christie book."
Agatha Christie was born in 1890 in Torquay. She wrote 80 crime novels and short story collections, two autobiographies and eight novels under the pseudonym Mary Westmacott.
She has sold more than two billion books worldwide.
Mr Prichard felt that there was still "an enormous appetite" for Poirot based on book sales and the success of the TV series starring David Suchet.
"I know that David Suchet's mailbag groans with fan letters. This book should intrigue Agatha Christie's many fans and show that this author and character is still very much alive in the 21st Century."