Emma Munroe, a Juilliard senior, snags a plum role on Broadway a few weeks before her twenty-first birthday. She travels to Hawaii with her best friends to celebrate. When she gets lost in a jungle during an impromptu hike, she happens upon a waterfall—and a naked hunk bathing underneath it.

When she finds out his name is Avery Bell, she’s dumbstruck. She believes she’s meant to love someone named Avery. It all goes back to a message in a bottle she found when she was nine, a letter written by a soldier called Avery to his sweetheart named Emma. He’d written it in the aftermath of the Pearl Harbor attack during World War II. Since then, Emma has been searching (and saving her virginity) for her own Avery.

But Avery Bell is as mysterious as he is irresistible. Emma learns about his family secrets and bitterness. In the course of this vacation, an accident and a tragic death will shake both of them to the core. Her singular faith in him—her unwavering belief in love and destiny—proves to be his saving grace.