Dark Ransom

"She was living on the edge of torment.
Charlie Graham had come thousands of miles across the world--the Amazon promised excitement, adventure and new hope for her bedraggled soul. But she hadn't counted on being kidnapped by one of Brazil's richest rubber planters, Riago da Santana, and held hostage in his jungle castle!
Of course, the kidnapping was a misunderstanding, and nobody could have predicted the torrential rains that flooded the river, stranding everybody. But that hadn't stopped the black sheep of the Santana family from sweeping Charlie away. He'd taken her body and devastated her mind and her senses. And then he demanded she become his bride!"