p Marple is invited to London to see her old friend Ruth Miss Marple was a sort of traveling companion to Ruth and her sister, Carrie Louise Ruth is worried about Carrie Louise She doesn 三九 t know why, though Ruth asks Miss Marple to come with her to her sister 三九 s estate, Stonygates Stonygates is a huge manor house, and some of the buildings and the grounds are used by Carrie Lo p