Choices in the Dark — Robert W. Walker

William T. Stead, the famed reporter, is a passenger on the ill-fated Titanic. During the voyage, he runs into an old friend, Inspector Alistair Ransom. But Inspector Ransom is not aboard to enjoy the Turkish baths, or the first-class promenade, or the fine dining for which Titanic will be known. Ransom is hot on the trail of a dangerous killer, and he enlists Stead's help in finding the danger. But evil can take a seductive form…