There is a Tide
(Hercule Poirot #31)
by
The celebrated Belgian sleuth visits the sleepy English village of Warmsley Vale to check into the background of Gordon Cloade, supposedly a victim of the London Blitz. He had wed an attractive young widow, the former Mrs. Underhay, now the sole possessor of the Cloade family fortune. The deceased's sister-in-law told Poirot that "spirits" informed her that the widow's first husband is still among the living, raising suspicions about Cloade's demise.