The introduction of a “secret traitor” seemed pointless to me. It inhibited the scheming between the three known traitors by influencing their decisions for no apparent reason.
I hope the idea is abandoned for future series.
How should a family manage an estranged relationship?
Why on earth would anyone plant.....
Only 50% of middle age adult manage more than 1 brisk 10 min walk a month.


and she does have to keep up the 'dithering woman of a certain age' persona to put the faithfuls off the scent.