Note: Possibly a genre novel, based on the publisher's description. Verifier should check, and update the author's bibliographic comments as appropriate.

Synopsis: Publisher: Lover... or Fiend? Rebecca Wyndam met Jack Stuart through a weird accident. She hardly knew him when he asked her to marry him. But she knew he had helped and protected her in mysterious ways ... so she had no hesitation in saying yes. Rebecca had a lot to learn. In the New York of 1890, she knew how to take care of herself as few young ladies did. But on that mysterious island in Maine which Jack owned -- or did he own it? -- she encountered problems and threats smacking of the weird and supernatural. Jack had disappeared by the time she arrived. Was he dead? Was he alive, and masquerading as someone else? What was behind the sinister intrigues and conspiracies that suddenly surrounded her? Whatever the answers, Jack was not there to help her. Fiend or lover, he had disappeared. She was alone ... alone with many enigmas!