Aaron Stone watched his friend slip into the icy waters of the Atlantic after they both barely managed to escape the sinking Titanic. Now, he's on a mission to find a family in America in order to fulfill a promise. With his uncle's recent disownment and his own financial stability in question, Aaron isn't prepared for a family who welcomes him into their home and their lives so readily. His friend's charming sister, Lillian, must never know Conrad asked him to take care of her, so Aaron sets out to help the family any way he can. When Lillian confides in him her desire to see the reopening of an antique bookshop her aunt once owned, Aaron offers to join her in the quest. The more time they spend together, the more they come to care for one another. But a letter from London calls Aaron back across the ocean and leaves Lillian wondering if she'll ever see him again. But Aaron made a promise, and he isn't about to let anyone—even family—stand in his way.