On the centenary of the godmother of crime fiction's debut, Sophie Hannah - author of the new Poirot mysteries - picks her favourite lesser-known gems.
"All of these novels are brilliant, of course, and sales figures show that they are undeniably Christie's most popular books. However, I have a theory: if everyone would read (or reread) the entire Christie oeuvre and give each novel a fair chance, irrespective of its fame and reputation, I suspect that they would discover, as I did, some unfairly neglected and underrated gems. Such as …"
