Mourning Ruby holiday book

The novel "mourning Ruby" by Helen Dunmore was extremely good since it showed depth and got more and more interesting towards the end. In the beginning I was not at all convinced that it was a good book though since it was very boring with a lot of description and no actions going on. Throughout the book the reader travels through time constantly, since the plot is about an "orphan" growing up. The novel is briefly about a young 30 year old mother who was laid in a shoebox in front of an italien restaurant as an infant and left there as an orphan, this newborn child (Rebecca) is now thirty years later a very successful singer and has children herself. She is searching for the truth in her family and trying to find her true origins. 
The book is very touching and deep, it is not very exciting tough, i still recommend it.