Mary Higgins Clark"s 22nd romantic thriller is destined for bestsellerdom on the strength of her reputation alone. Which is not to say that Before I Say Good-Bye doesn"t have a bit of all the ingredients of the Clark genre: a little mystery, a likeable heroine and even a nice guy who turns up midway through the novel and promises her romance and a second chance at happiness. But while the set-up is promising and the bare essentials of a compelling read are all here, only readers who are already Higgins fans will be kept completely spellbound.Nell MacDermott is the politically ambitious granddaughter of a canny politician in Manhattan"s silk stocking district, and her grandfather wants her to run for his old congressional seat. But there are rumours that Adam Cauliff, Nell"s husband, has been involved in a real estate and construction scam, and until Nell gets to the bottom of this her political future will be clouded. When Adam and his assistant are killed in an explosion aboard his boat, Nell is determined to clear his name. Nudged into action by her nascent psychic powers and a medium who may be her only link to Adam, Nell learns more about her husband"s mysterious past than she bargained for and--naturally--stumbles onto a conspiracy that puts her own life in danger. The narrative seems more like an outline for a novel than a novel itself; the characters are sketched rather than fully explored--particularly Nell, whose back story doesn"t provide enough information to make her actions understandable. But the pacing is expert and Clark"s dedicated fans will doubtless forgive her for not making this her strongest outing. --Jane Adams