Sorry to take so long to start a new game but I was babysitting at my daughter's house without access to my books.
Here it is,
Anne Meredith, Mr Ferguson, Phillip Blake
Do they all have Love Rivals? - That is part of it.
The person, they were in love with, chose someone else? - Yes, you have it. Your turn!
They are all jilted lover - So close but Christopher said it first.
St Mary Mead is the centre of the criminal universe!
Seriously though, I am stumped, too! My grey cells are out of action.
Mrs Blair said:
Is it that Katherine knows Poirot who also knows Mrs. Oliver, who knows Maude, who knows Miss Marple, who must know Katherine as they live in the same village? So there is a circle of friends? Or is that too convoluted?