Skeleton Key — Jane Haddam

When writer and ex-deb Bennis Hannaford discovers the body of super-heiress Kayla Anson in the family garage, her visit to Litchfield County, Connecticut, is reluctantly extended. Bennis's hostess, Margaret Anson, presents an icy version of the grieving mother, cut out of her late husband's will--until now. And when Gregor Demarkian, ex-FBI man and Bennis's lover, arrives from Philadelphia to consult with local police, a media blitz storms in as more suspects crawl out of the woods. Kayla may have been too blindingly rich for her wild, private school chum; her older, socially ambitious entrepreneur boyfriend; and a divorced, downsized bookkeeper selling her furniture to survive. As Gregor maps out distances, locations, and motives, Halloween descends on the dark, silent hills. From a skeleton sprawled on the cemetery caretakers' porch to more deadly mischief and mayhem, the countryside is brimming with secrets. And a killer is about to strike again...