Why should the reader care?

Recently, I asked a reviewer I met on KUForum if she would like to review my novel, Secrets From The Dust. She replied to say that it was not the sort of book she normally read, but she would have a look at the sample. A couple of days later she contacted me to say the sample had left her on a cliff hanger, and she needed to know what happened next. So I sent her the kindle eBook, and a few days later, she wrote a wonderful review admitting that she had been late for work because she wanted t...