THE MARQUISE WENT OUT AT FIVE (311 pp.)—Claude Mauriac—Braziller ($4.95). Quick color in the muddled crowd: a pretty girl in tight blue pants runs at top speed through the Paris square and disappears.

ALL WOMEN ARE FATAL by Claude Mauriac. 308 pages. Braz///er. $4.95. Bertrand Carnejoux is a roving young journalist of notable amatory agility. Every ripple in the stream of his consciousness reflects ...