Resistance — Anita Shreve

A tale of impossible love in Nazi-occupied Belgium, where forbidden passions have catastrophic consequences.
Claire Daussois, the wife of a Belgian resistance worker, shelters a wounded American bomber pilot in a secret attic hideaway. As she nurses him back to health, Claire is drawn into an affair that seems strong enough to conquer all--until the brutal realities of war intrude, shattering every idea she ever had about love, trust, and betrayal.
Resistance is a tender but tragic love story, told with the same narrative grace and keen eye for human emotion that have distinguished all of Anita Shreve's cherished bestsellers.