Edgar Award winner and internationally best-selling author Mo Hayder has made her name with nightmarishly dark, impeccably-plotted thrillers that hook readers from the first page and won't let them go. With her latest novel, Wolf , the frighteningly talented Hayder ratchets up the terror yet another notch, with a bone-chilling novel about a family held hostage in their country home. Wolf kicks off when a vagrant--the Walking Man, an enigmatic, recurring...