Book excerpt: Lucette's children would like a kinder, warmer home, but what they have is a government-issued concrete box, out in the thorns and sand on the outskirts of Tel Aviv; and their mother, hard-worn and hardscrabble, who cleans homes by night and makes school lunches by day. Lucette quarrels with everybody, speaks only Arabic and French, is scared only of snakes, and is as likely to lock her children out as to take in a stray dog. The youngest child recounts her years in Lucette's house, where Israel's wars do not intrude and hold no interest