This House Is Mine von Dörte Hansen

All her life Vera has felt like a stranger in the old and drafty farmhouse she arrived in as a five-year-old refugee from East Prussia in 1945, and yet she can't seem to let it go. 60 years later, her niece Anne suddenly shows up at her door with her small son. Anne has fled the trendy Hamburg neighborhood she never fit into when her relationship implodes. Vera and Anne are strangers to each other, but have much more in common than they think. A huge bestseller in Germany.