Book excerpt: Passengers are dying on White Star Lines transatlantic ocean liners: three mysterious suicides, on three different ships, all in first-class cabins numbered 13. With the maiden voyage of their newest ship imminent -- an incomparably lavish vessel called the Titanic -- the cruise line can't afford a fourth. Professor John Darnell, the world's first and only paranormal detective, may be their last hope of debunking rumors of a murderous ghost. As the world's largest and purportedly safest ship sets sail, neither Darnell's sixth sense nor his investigative skills can protect him from the twin perils he is about to face.