Yes! Really enjoyed it -- the mysterious sister and all that. Reminded me of Shirley Jackon's We Have Always Lived in the Castle, also a bit gothic with huge unanswered questions looming menacingly in the background <cue ominous music>. Bet you'd like that one, if you haven't read it yet. Rebecca is one of my regular rereads, usually about once a year, and I have the unabridged audio as well :)