P.D. James is reknowned for her ability to combine the psychological novel with the classic murder mystery--but now and then her emphasis on psychology so overshadows her plot that it becomes hard to describe the work as a murder mystery per se. Such is the case with THE BLACK TOWER, a profoundly bleak novel set in an isolated home for "the young disabled," a euphemistic term for victims of slowly progressing but ultimately fatal muscular disease. The story begins when Inspector Dalgliesh, himself recovering from both a serious illness and a crisis of confidence, is invited to Toynton Grange by the home's elderly chaplin; something is amiss, and the chaplin would welcome Dalgliesh's advice. But when Dalgliesh arrives, he finds his old friend has died a few days earlier. With little to go on except his own suspicion, Dalgliesh slowly, grudingly begins to investigate... and finds one suspicious death after another. The premise is a classic set up, but in this novel James places Dalgliesh more as an observer of the inevitable than as a detective, and when the solution arrives it does so more by intuition and assumption than by logical deduction. But if this element is weak, the overall novel is very strong: moody to the point of despair, and peopled with painfully pitiful characters, THE DARK TOWER is perhaps one of James' more memorable novels in terms of style alone. Flawed, yes; recommended nonetheless. But be forewarned: you may need prescription medication to escape the se