In one of London's most elegant shops, a decorative doll in green velvet adopts some rather human, and sinister, traits... A country gentleman is questioned about a murder that has yet to be committed...In summoning spirits, a medium is drawn closer to the world of the dead than she ever imagined possible... In a small country church, a dying man's last word, sanctuary, becomes both an elegy and a clue to a crime. Only the Queen of Crime could have conceived such delicious treats for mystery lovers. Only the inimitable Hercule Poirot and Miss Marple could solve them with such chilling perfection.