"Antonia Vega, the immigrant writer at the center of this novel, has had the rug pulled out from under her. She has just retired from the college where she taught English when her husband, Sam suddenly dies. And then more jolt: her big-hearted but unstable sister disappears, and Antonia returns home one evening to find a pregnant, undocumented teenager on her doorstep. Antonia has always sought direction in the literature she loves--lines from her...