The Moonstone by Wilkie Collins

  This was a fabulous book!  It begins to disturb the reader just as the character's lives are becoming overrun with the difficulties of their own mystery.  It was written in sections as if the people are documenting their experiences surrounding a missing jewel as evidence.  Just as I was getting wrapped into one account it would abruptly end leaving so many questions unanswered.   It was written originally in 1868, but was very readable for that time period and I enjoyed it very much.