NATIONAL BESTSELLER - In this "treat for mystery lovers" (USA Today), the quiet Little Vestry of St. Matthew's Church becomes the blood-soaked scene of a double murder, and Scotland Yard Commander Adam Dalgliesh faces an intriguing conundrum. - Part of the bestselling mystery series that inspired Dalgliesh on Acorn TV "A first-rate detective novel, but it goes beyond that fine achievement to another realm.... An intricate,...