Bluebeard's Daughter — Marion Zimmer Bradley

Sybil Ellis was a seventeen-year-old orphan with very few options: If she didn't want to be a governess or a companion-and she didn't, she had to marry. So she married Dr. Philip Maynard, who was old enough to be her grandfather and treated her like a daughter.

To wed a monster

Sybil Ellis had little choice. Orphaned by a shocking accident, she had to marry someone. And Philip Maynard seemed nice enough at first. He was much older than she, but he was rich and attentive. It wasn't hard to become infatuated with him.

The oddness began on their honeymoon. Philip insisted that Sybil dress as a very young girl, and pose as his daughter instead of his wife. Then she became aware that they were shadowed by a strange man -- and fear settled into her heart…

Back at Philip's old home, Quarry House, the situation grew worse instead of better. Sybil was virtually a prisoner -- and she learned that there had been other “daughters” before her. But until tragedy was compounded by tragedy, she did not know what their fate had been -- or what hers would be…