Taken at the Flood or There is a Tide -by Agatha Christie

"there is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries,
On such a full sea are we now afloat,
And we must take the current when it serves,
Or lose our ventures."

Warmsley Vale was just another sleepy English village, yet a series of misfortune were taken place, and all are associated with Cloade family.

Was it a coincidence or a deliberate crime? Hercule Poirot found himself on a trail as baffling as any he had ever encountered.