Brandon of the Engineers by Harold Bindloss

Next morning Dick reviewed the situation as he ate his breakfast in the fresh coolness before the sun got up. He had got a shock, but he was young and soon recovered. His anger against the unknown plotter remained fierce, but this was, in a sense, a private grievance, by which he must not be unduly influenced. It was plain that he was thought dangerous, which showed that he was following the right clue, and he had determined that the raiding of ships belonging to Britain or her allies must be stopped. Since he had gone to the representative of British authority and had been rebuffed, he meant to get Fuller to see if American suspicions could be easier aroused, but he must first make sure of his ground. In the meantime, Don Sebastian had asked his help and he had given a conditional promise.

Dick decided that he had taken the proper course. Don Sebastian held Kenwardine accountable and meant to expose him. This was painful to contemplate for Clare's sake, but Dick admitted that he could not shield Kenwardine at his country's expense. Still, the matter was horribly complicated. If Kenwardine was ruined or imprisoned, a serious obstacle in Dick's way would be removed, but it was unthinkable that this should be allowed to count when Clare must suffer. Besides, she might come to hate him if she learned that he was responsible for her father's troubles. But he would make the liner's fate a test. If the vessel arrived safe, Kenwardine should go free until his guilt was certain; if she were sunk or chased, he would help Don Sebastian in every way he could.