‘San Miguel’ by T.C. Boyle
“San Miguel’’ marks the second time in a row, following last year’s “When the Killing’s Done,’’ that T.C. Boyle has set one of his books in the Channel Islands of California. This time around, the island represents all sorts of things. It means something different for each member of the two families who move there a half-century apart, and Boyle never lets us forget it.