Lighthouse Bay by Kimberly Freeman. The book is being released by Touchstone on April 9, 2013.
Amazon says this about the book: In 1901, a ship sinks off the coast of Lighthouse Bay in Australia. The only survivor is Isabella Winterbourne—escaping her loveless marriage and the devastating loss of her son—who clutches a priceless gift meant for the Australian Parliament. Suddenly, this gift could be her ticket to a new life, free from the bonds of her husband and his overbearing family.
One hundred years later, Libby Slater leaves her life in Paris to return to her hometown of Lighthouse Bay. Living in the cottage that was purchased by her recently passed lover, she hopes to heal her broken heart and reconcile with her sister, Juliet. Libby did something so unforgivable twenty years ago, Juliet is unsure if she can ever trust her sister again.
In this adventurous love story spanning centuries, both Isabella and Libby must learn that letting go of the past is the only way to move into the future.