why does this ad keep on cropping up? marine green had sussed kate holliday's system out...one that she was to tell her sister sarah...she used to keep that key in a 'bootee'...and whilst using it 'out and about'...to open 'that door'...well she used to keep it well-hidden upon her person....can you guess where? marine green did...perhaps another 'post-mortem' is in order?