The Pirate and His Lady (The Buccaneers #2) by Linda Chaikin

Warm, tropical Jamaica—a hotbed of piracy, violence, and spiritual conflict. Emerald Harwick is caught amidst each.

Her fiance, Captain Baret "Foxworth" Buckington, defies the laws of the Jamaican Council and sails with notorious arch pirate Henry Morgan, hoping to find his imprisoned father among the Spanish dons.

Her marriage delayed, Jamaican law forces Emerald to also put her heart's desire on hold: teaching Christianity to the African slaves. She fights disappointment and seeks an end to the spiritual conflict with her culture.

Emerald is caught in a web of disillusionment, anger, and fear. As Spanish sympathizers gain the ear of the king, she must face a most frightening possibility: If caught, Baret will be arrested and hanged at Execution Dock.