Summer Island: A Novel by Kristin Hannah

Nora insists they retreat to Summer Island in the San Juans, to the lovely old house on the water where Ruby grew up, a place filled with childhood memories of love and joy and belonging. There Ruby is also reunited with her first love and his brother. Once, the three of them had been best friends, inseparable. Until the summer that Nora had left and everyone's hearts had been broken. . . . 

What began as an expose evolves, as Ruby writes, into an exploration of her family's past. Nora is not the woman Ruby has hated all these years. Witty, wise, and vulnerable, she is desperate to reconcile with her daughter. As the magazine deadline draws near and Ruby finishes what has begun to seem to her an act of brutal betrayal, she is forced to grow up and at last to look at her mother--and herself--through the eyes of a woman. And she must, finally, allow herself to love.