This book never really goes beyond the blurb on the back. Instead it appears that the blurb is meant to act as a summary of sorts, with the book only adding a few extra details.

The Secret Sister, Fotini Tsalikoglou
A successful writer in Greece, this is her first novel to be translated into English.
This is a short book full of intense longing for a path and deep sadness over loss. It is also about how choices we make may haunt our families for generations.
Jonathan is headed to Greece to try and find himself after the loss of someone very important to him. He is fearful of the journey and what it will mean for him, and can't seem to let go of his family's somewhat tortured history. On the flight he communicates with the sister he loves but who is not traveling with him, as he tries to come to terms with his mother's alcoholism and his grandparent's complicated ties to their past and their homeland's turmoil. It is really a novella but an interesting read that encompasses more then seems possible in 116 pages.