The Memory Keeper's Daughter by Kim Edwards

On a bleak, snowy night in 1964, Dr. David Henry delivers his own twins while his wife, Norah, is heavily drugged. The first baby is a healthy boy. The second is a girl with Down's Syndrome. Dr. Henry makes a decision, in an effort to protect his wife, to instruct the nurse, Caroline Gill, to take the baby to an institution. However, instead of leaving the baby girl at the institution, Caroline decides to leave town and raise the baby herself. Dr. Henry tells his wife that the baby girl died and she has no reason to not believe him. This story follows each family as the kids grow up, the secret is kept, and how the grief that follows never really leaves.

This book was absorbing and very readable. It was touching and true enough at the end that I had tears running down the sides of my face (I was reading on my back but didn't want to stop reading long enough to get tissue). Highly recommended.