Publicly betrothed to Baret Buckington, her handsome sea captain, Emerald Harwick can scarcely contain her joy. She will manage her plantation's Great House on Jamaica until his return from sailing with buccaneer Henry Morgan, and then they will marry. Meanwhile, she will begin a singing school and translate the African slave chants God's songs of redemption.

But then problems out of the past put in an unexpected appearance. Emerald is abducted and finds herself on an unscheduled sea voyage. That long-ago stolen treasure from the Prince Philip comes into play once more. Baret hopes to free his imprisoned father and unearth the treasure.

But Baret's enemy—pirate Rafael Levasseur—emerges as a final threat to Emerald's cherished hopes. Can the God in whom she trusts indeed cause all things to work together for good?