Ending in marriage: "The clashes between pilot Duke Porter and Seattle attorney Tracy Santiago are legendary. Duke's a tough, rugged individualist who delights in expressing outrageous opinions, particularly when Tracy's around. But she gives as good as she gets ... and not just when they're arguing!"--P. [4] of cover. Falling for him: "Christian, the youngest O'Halloran brother, has a problem, and her name is Mariah Douglas. The Midnight Sons secretary...