Towards zero.

What is the connection between a failed suicide attempt, a wrongful accusation of theft against a schoolgirl, and the romantic life of a tennis player? To the casual observer, apparently nothing. When a houseparty gathers at Gull's Point, the seaside home of an elderly widow, earlier events come to a dramatic head.Robert Graves, author of I Claudius, was a neighbour of Agatha Christie's in Devon during the Second World War and the two became friends. Christie dedicated this book to Graves: "Dear Robert, Since you are kind enough to say you like my stories, I venture to dedicate this book to you. All I ask is that you sternly restrain your critical faculties (doubtless sharpened by your recent excesses in that line!) when reading it. This is a story for your pleasure and not a candidate for Mr Graves' literary pillory!" The book was dramatised by Agatha Christie and Gerald Verner. It was adapted for TV in 2007 with Geraldine McEwan as Miss Marple.