Treasures lost treasures found - Nora Roberts

Kate Hardesty had inherited a dream: a pile of mysterious charts and notebooks, mapping the way to sunken treasure. Determined to complete her late father's explorations, she returned to the island where she grew up, and hired deep-sea diver Ky Silver - the man she'd left behind four years ago. But working with Ky meant more than searching for gold...it meant finding a priceless treasure Kate hadn't been looking for.