Book excerpt: Steve Niles has done it againcrafted a white-knuckled horror adventure that's as funny as it is frightening, and as smart as it is spooky. This month Nilesalong with his artist accomplice Kelley Jonesputs a wrap on _Last Train to Deadsville_, the latest hit miniseries of his Cal McDonald canon. With his ghoul partner Mo'Lock in trouble, and his journalist girlfriend tagging along to keep her eye on him, Cal has his hands full even before he gets to the point of dealing with an entire Southern California town that just happens to be possessed by the nastiest spirit ever. Demonic possessions, gaping holes that lead to hell, otherworldly monstersCal can deal with these. But a girlfriend who wants to know what their future holds? Talk about a nightmare!