The Dark Atonement (The Cold War Legacy Series)

German translator Lena Hoffman thought her grandfather died years ago. But the unexpected arrival of a cryptic postcard seems to indicate otherwise. As Lena delves into her grandfather's past and uncovers information about him and his cancer research work in East Germany four decades ago, she unwittingly puts her own life in danger.

Dr. Devlin Mills works as a cancer researcher at the National Institutes of Health and lives across the hall from Lena, although they've never formally met. But ...