"Luck don't change, love," observes Sam Pickles to his daughter Rose. "It moves." Considerations of fate and love underlie Winton's ( Shallows ) wry novel, set in Western Australia, about two families thrown together in the years following WW II. Sam Pickles earns a modest living mining guano for nitrate until he loses his hand in an accident. Fortunately, the family inherits a rambling old house--the Cloudstreet of the title--in which they can live, although they still lack cash. The dilemma is resolved with the sudden arrival of the rigid, God-fearing Lamb family, whom the rather libertine Pickles take in as boarders. Following the quirky, deeply etched members of these families--"flamin whackos," in Quick Lamb's description--as they forge bonds and undergo travails, Winton explores the haphazard nature of human existence with a quietly focused ferocity. Featuring lyrical passages and rapid-fire, minimally punctuated dialogue, this satiric, affectionate family saga is tragic and hilarious--and often both at once. Winton shows himself a worthy successor to his countryman Martin Boyd, who portrayed the Anglo-Australian society of previous generations.