Shine Took Sackett's Land

It's a Louis L'Amour classic. The plot: After discovering six gold Roman coins buried in the mud of the Devil’s Dyke, Barnabas Sackett enthusiastically invests in goods that he will offer for trade in America. But Sackett has a powerful enemy: Rupert Genester, nephew of an earl, wants him dead. A battlefield promise made to Sackett’s father threatens Genester’s inheritance. So on the eve of his departure for America, Sackett is attacked and thrown into the hold of a pirate ship. Genester’s orders are for him to disappear into the waters of the Atlantic.