"As she drives her mobile library van between villages of Ireland's West Coast, Hanna Casey tries not to think about a lot of things. Like the sophisticated lifestyle she abandoned after finding her English barrister husband in bed with another woman. Or that she's back in Lissbeg, the rural Irish town she walked away from in her teens, living in the back bedroom of her overbearing mother's retirement bungalow. Or, worse yet, her nagging fear that,...