Book excerpt: Midnight. August 4, 1995. The eerie lights of the deserted airfield play across the exhausted face of Detective Randy Crawford. For almost six months, he's been chasing a convicted serial killer, John Lee Fellowes, across the back roads of Maryland. Now Crawford, with the aid of Deputy Harris Green, has cornered Fellowes at last, in the sleepy little town of Burkittsville. But is it a human killer they must confront -- or an evil force from out of the past, given life in the shape of a man? Long before the rest of America had heard of the Blair Witch, two good men in the Black Hills of Burkittsville faced down a demon out of the past.