A marriage contract. A lost treasure. A legacy neither of them asked for.

Evan Sloane, grandson of a notorious pirate, has spent his life trying to rise above his family’s past. Now a respected enquiry agent known as Valiant, he’s used to danger — but nothing prepares him for the peculiar woman who keeps appearing wherever he goes.

Vivienne Hart holds a seventy-year-old contract that binds her to Evan by marriage. She also carries the secret to a long-lost fortune, and someone will stop at nothing to claim it.

Forced into a reluctant partnership, Evan and Vivienne must follow a trail of clues left by their grandfathers. But as peril closes in and desire grows, they begin to realise that the most enduring legacies aren’t measured in gold—but in trust, loyalty, and love.