A pair of loose-cannon hit men do baccarat referee Solitaire Smith and Kansas tourist Gayle Tyson the favor of throwing them together in 1985 Las Vegas, but send them scurrying into the desert and a whirlwind of past crimes and misdemeanors that will be unwrapped only with the help of Midnight Louie, the tough-talking cat who here rounds out his quartet of first appearances (The Cat and the Jill of Diamonds, p. 517) in hardcovers nearly half again as long as their 1990 paperback abridgements.