A Few Weeks After Marrying An Attractive Young Widow, Gordon Cloade Is Tragically Killed By A Bomb Blast In The London Blitz. Overnight, The Former Mrs Underhay Finds Herself In Sole Possession Of The Cloade Family Fortune. Shortly Afterwards, Hercule Poirot Receives A Visit From The Dead Man S Sister-In-Law Who Claims She Has Been Warned By Spirits That Mrs Underhay S First Husband Is Still Alive. Poirot Has His Suspicions When He Is Asked To Find A Missing Person Guided Only By The Spirit World. Yet What Mystifies Poirot Most Is The Woman S True Motive For Approaching Him&