And then there were none

The World's Bestselling Mystery"Ten . . ."Ten strangers are lured to an isolated island mansion off the Devon coast by a mysterious "U. N. Owen.""Nine . . ."At dinner a recorded message accuses each of them in turn of having a guilty secret, and by the end of the night one of the guests is dead."Eight . . ."Stranded by a violent storm, and haunted by a nursery rhyme counting down one by one . . . as one by one . . . they begin to die."Seven . . ."Which among them is the killer and will any of them survive?