The four women were insignificant - almost nobody even knew they were gone. It was up to Hildegarde Withers to discover the ugly truth about what had happened to the missing ladies - and why.

The Villa Paloma on the French Riviera was home to a lot of people, most of whom had a great deal to hide. It was no surprise that it all ended in sudden death.

Only one of the possible heirs objected to the tax plan - and that heir soon met with an unfortunate accident.

The teenagers' prank was supposed to make people think they had summoned the devil. Is that really what happened?

The victim was traveling under a false name - but there were many others on the train with deadly secrets to hide. One of Agatha Christie's best mysteries.