El Pasajero 23
Resumen del Libro

More than twenty people on cruises disappear each year. Not one has returned. Five years ago, Martin Schwarz, a police psychologist, lost his wife and son while on the Sultan of the Seas cruise ship. He receives a call from a strange old woman, who asks him to embark with her on the Sultan of the Seas immediately, claiming to have evidence about the disappearance.