Book 1: The Last Summer (of You and Me) is a book about 2 sisters and their long time summer friend on the island that they spend their summers. Written by the same author who wrote the Summerhood of the Traveling Pants, this book is a good, quick read.
Book 2: The Memory of Water is also a book about two sisters. Years after the incident, these two sisters (as well as the rest of the family) are forced to finally deal with a tragic boating accident that happened to them as children, resulting in the loss of their mother. The book is full of "real life" emotions and twists and turns. I had a hard time putting it down.