Reef. Nora Roberts. 2009.

Tate Beaumont, a beautiful student of marine archaeology, and Matthew Lassiter, a sea-scarred young man, share the same ambition. Angelique’s Curse, a jewelled amulet thought to be long lost at the bottom of the ocean, is steeped in legend - and both divers are determined to find it.

Forced into a reluctant partnership with Matthew and his uncle, Tate soon learns that her stormy fellow explorer holds as many secrets as the sea itself. And when the truth emerges about the mysterious death of Matthew’s father eight years earlier, danger - and desire - rush to the surface.