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. . . . While 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 Mystery could have conceived such delicious treats for suspense lovers. Only the inimitable Hercule Poirot and Miss Marple could solve them with such chilling perfection.